<XBRL>
<?xml version="1.0" encoding="us-ascii"?>
<!-- XBRL document created with XMark (C) by Bowne Inc. -->
<!--Based on XBRL 2.1-->
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" targetNamespace="http://wdc.com/2011-07-01" xmlns:wdc="http://wdc.com/2011-07-01" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" elementFormDefault="qualified" attributeFormDefault="unqualified" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:us-types="http://fasb.org/us-types/2011-01-31">
  <annotation>
    <appinfo>
      <link:roleType roleURI="http://wdc.com/role/IncomeTaxesDetails1" id="IncomeTaxesDetails1">
        <link:definition>06091 - Disclosure - Income Taxes (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/RetirementPlan" id="RetirementPlan">
        <link:definition>0207 - Disclosure - Western Digital Corporation 401(k) Plan</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/RetirementPlanDetails" id="RetirementPlanDetails">
        <link:definition>0607 - Disclosure - Western Digital Corporation 401(k) Plan (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ShareholdersEquityDetailsTextuals" id="ShareholdersEquityDetailsTextuals">
        <link:definition>06086 - Disclosure - Shareholders' Equity (Details Textuals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ValuationAndQualifyingAccountsDetails" id="ValuationAndQualifyingAccountsDetails">
        <link:definition>0701 - Schedule - Schedule II - Consolidated Valuation And Qualifying Accounts (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/QuarterlyResultsOfOperationsunauditedDetailsTextual" id="QuarterlyResultsOfOperationsunauditedDetailsTextual">
        <link:definition>06151 - Disclosure - Quarterly Results of Operations (unaudited) (Details Textuals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/QuarterlyResultsOfOperationsunauditedDetailsTextuals" id="QuarterlyResultsOfOperationsunauditedDetailsTextuals">
        <link:definition>0615 - Disclosure - Quarterly Results of Operations (unaudited) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/QuarterlyResultsOfOperationsunauditedTables" id="QuarterlyResultsOfOperationsunauditedTables">
        <link:definition>0515 - Disclosure - Quarterly Results of Operations (unaudited) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/AcquisitionsDetailsTextuals" id="AcquisitionsDetailsTextuals">
        <link:definition>06141 - Disclosure - Acquisitions (Details Textuals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/AcquisitionTables" id="AcquisitionTables">
        <link:definition>0514 - Disclosure - Acquisition (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/AcquisitionsDetails" id="AcquisitionsDetails">
        <link:definition>0614 - Disclosure - Acquisitions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/RestructuringAndSaleOfFacilityDetailsTextuals" id="RestructuringAndSaleOfFacilityDetailsTextuals">
        <link:definition>0613 - Disclosure - Restructuring And Sale Of Facility (Details Textuals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/OtherIntangibleAssetsTables" id="OtherIntangibleAssetsTables">
        <link:definition>0512 - Disclosure - Other Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/OtherIntangibleAssetsDetails" id="OtherIntangibleAssetsDetails">
        <link:definition>0612 - Disclosure - Other Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/FairValueMeasurementsDetails1" id="FairValueMeasurementsDetails1">
        <link:definition>06101 - Disclosure - Fair Value Measurements (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/IncomeTaxesDetailsTextuals" id="IncomeTaxesDetailsTextuals">
        <link:definition>06092 - Disclosure - Income Taxes (Details Textuals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/IncomeTaxesTables" id="IncomeTaxesTables">
        <link:definition>0509 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ShareholdersEquityDetails5" id="ShareholdersEquityDetails5">
        <link:definition>06085 - Disclosure - Shareholders Equity (Details 5)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ShareholdersEquityDetails4" id="ShareholdersEquityDetails4">
        <link:definition>06084 - Disclosure - Shareholders Equity (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ShareholdersEquityDetails3" id="ShareholdersEquityDetails3">
        <link:definition>06083 - Disclosure - Shareholders' Equity (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ShareholdersEquityDetailsTwo" id="ShareholdersEquityDetailsTwo">
        <link:definition>06082 - Disclosure - Shareholders' Equity (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ShareholdersEquityDetailsOne" id="ShareholdersEquityDetailsOne">
        <link:definition>06081 - Disclosure - Shareholders' Equity (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ShareholdersEquityDetails" id="ShareholdersEquityDetails">
        <link:definition>0608 - Disclosure - Shareholders' Equity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ShareholdersEquityTables" id="ShareholdersEquityTables">
        <link:definition>0508 - Disclosure - Shareholders' Equity (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/BusinessSegmentGeographicInformationAndMajorCustomersDetails" id="BusinessSegmentGeographicInformationAndMajorCustomersDetails">
        <link:definition>0606 - Disclosure - Business Segment, Geographic Information and Major Customers (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/BusinessSegmentGeographicInformationAndMajorCustomersTables" id="BusinessSegmentGeographicInformationAndMajorCustomersTables">
        <link:definition>0506 - Disclosure - Business Segment, Geographic Information and Major Customers (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/CommitmentsAndContingenciesDetails" id="CommitmentsAndContingenciesDetails">
        <link:definition>0604 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/CommitmentsAndContingenciesTables" id="CommitmentsAndContingenciesTables">
        <link:definition>0504 - Disclosure - Commitments and Contingencies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/DebtTables" id="DebtTables">
        <link:definition>0503 - Disclosure - Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/OrganizationAndSummaryOfSignificantAccountingPoliciesDetailsTextuals" id="OrganizationAndSummaryOfSignificantAccountingPoliciesDetailsTextuals">
        <link:definition>06011 - Disclosure - Organization and Summary of Significant Accounting Policies (Details Textuals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/OrganizationAndSummaryOfSignificantAccountingPoliciesDetails" id="OrganizationAndSummaryOfSignificantAccountingPoliciesDetails">
        <link:definition>0601 - Disclosure - Organization and Summary of Significant Accounting Policies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/OrganizationAndSummaryOfSignificantAccountingPoliciesTables" id="OrganizationAndSummaryOfSignificantAccountingPoliciesTables">
        <link:definition>0501 - Disclosure - Organization and Summary of Significant Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ConsolidatedValuationAndQualifyingAccounts" id="ConsolidatedValuationAndQualifyingAccounts">
        <link:definition>0301 - Schedule - Schedule II - Consolidated Valuation And Qualifying Accounts</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/QuarterlyResultsOfOperationsUnaudited" id="QuarterlyResultsOfOperationsUnaudited">
        <link:definition>0215 - Disclosure - Quarterly Results of Operations (unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/Acquisitions" id="Acquisitions">
        <link:definition>0214 - Disclosure - Acquisitions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/RestructuringAndSaleOfFacility" id="RestructuringAndSaleOfFacility">
        <link:definition>0213 - Disclosure - Restructuring and Sale of Facility</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/OtherIntangibleAssets" id="OtherIntangibleAssets">
        <link:definition>0212 - Disclosure - Other Intangible Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ShareholdersEquity" id="ShareholdersEquity">
        <link:definition>0208 - Disclosure - Shareholders Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/BusinessSegmentGeographicInformationAndMajorCustomers" id="BusinessSegmentGeographicInformationAndMajorCustomers">
        <link:definition>0206 - Disclosure - Business Segment Geographic Information And Major Customers</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/CommitmentsAndContingencies" id="CommitmentsAndContingencies">
        <link:definition>0204 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/OrganizationAndSummaryOfSignificantAccountingPolicies" id="OrganizationAndSummaryOfSignificantAccountingPolicies">
        <link:definition>0201 - Disclosure - Organization and Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ConsolidatedStatementsOfShareholdersEquityAndComprehansiveIncome" id="ConsolidatedStatementsOfShareholdersEquityAndComprehansiveIncome">
        <link:definition>0140 - Statement - Consolidated Statements of Shareholder's Equity and Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ForeignExchangeContractsDetailsTextuals" id="ForeignExchangeContractsDetailsTextuals">
        <link:definition>06112 - Disclosure - Foreign Exchange Contracts (Details Textuals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ForeignExchangeContractsDetails1" id="ForeignExchangeContractsDetails1">
        <link:definition>06111 - Disclosure - Foreign Exchange Contracts (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ForeignExchangeContractsDetails" id="ForeignExchangeContractsDetails">
        <link:definition>0611 - Disclosure - Foreign Exchange Contracts (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ForeignExchangeContractsTables" id="ForeignExchangeContractsTables">
        <link:definition>0511 - Disclosure - Foreign Exchange Contracts (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/FairValueMeasurementsDetails" id="FairValueMeasurementsDetails">
        <link:definition>0610 - Disclosure - Fair Value Measurements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/FairValueMeasurementsTables" id="FairValueMeasurementsTables">
        <link:definition>0510 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/IncomeTaxesDetails" id="IncomeTaxesDetails">
        <link:definition>0609 - Disclosure - Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/DebtDetails" id="DebtDetails">
        <link:definition>0603 - Disclosure - Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/BasisOfPresentationPolicies" id="BasisOfPresentationPolicies">
        <link:definition>0401 - Disclosure - Organization and Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/SupplementalFinancialStatementDataDetails" id="SupplementalFinancialStatementDataDetails">
        <link:definition>0602 - Disclosure - Supplemental Financial Statement Data (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/SupplementalFinancialStatementDataTables" id="SupplementalFinancialStatementDataTables">
        <link:definition>0502 - Disclosure - Supplemental Financial Statement Data (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/DocumentAndEntityInformation" id="DocumentAndEntityInformation">
        <link:definition>00 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/ForeignExchangeContracts" id="ForeignExchangeContracts">
        <link:definition>0211 - Disclosure - Foreign Exchange Contracts</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/FairValueMeasurements" id="FairValueMeasurements">
        <link:definition>0210 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/IncomeTaxes" id="IncomeTaxes">
        <link:definition>0209 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/LegalProceedings" id="LegalProceedings">
        <link:definition>0205 - Disclosure - Legal Proceedings</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/Debt" id="Debt">
        <link:definition>0203 - Disclosure - Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/SupplementalFinancialStatementData" id="SupplementalFinancialStatementData">
        <link:definition>0202 - Disclosure - Supplemental Financial Statement Data</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/BalanceSheetsParenthetical" id="BalanceSheetsParenthetical">
        <link:definition>0111 - Statement - Consolidated Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/StatementsOfCashFlows" id="StatementsOfCashFlows">
        <link:definition>0130 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/StatementsOfIncome" id="StatementsOfIncome">
        <link:definition>0120 - Statement - Consolidated Statements of Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://wdc.com/role/BalanceSheets" id="BalanceSheets">
        <link:definition>0110 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:type="simple" xlink:href="wdc-20110701_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="wdc-20110701_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="wdc-20110701_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="wdc-20110701_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links, all" />
    </appinfo>
  </annotation>
  <import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <import namespace="http://xbrl.sec.gov/dei/2011-01-31" schemaLocation="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd" />
  <import namespace="http://fasb.org/us-gaap/2011-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd" />
  <import namespace="http://fasb.org/us-types/2011-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2011/elts/us-types-2011-01-31.xsd" />
  <import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <element id="wdc_AccruedWarranty" name="AccruedWarranty" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_InterestAndOtherExpense" name="InterestAndOtherExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="wdc_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_PreferredStockValues" name="PreferredStockValues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_CommonStockValues" name="CommonStockValues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_TaxesPaidOnVestedStockAwardsUnderEmployeeStockPlans" name="TaxesPaidOnVestedStockAwardsUnderEmployeeStockPlans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wdc_ComputationOfBasicAndDilutedIncomePerCommonShareAbstract" name="ComputationOfBasicAndDilutedIncomePerCommonShareAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_DebtTextualsAbstract" name="DebtTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_PeriodOfTermLoanFacility" name="PeriodOfTermLoanFacility" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_TermLoanMember" name="TermLoanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_IncomeTaxesTextualsAbstract" name="IncomeTaxesTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_FairValueMeasurementsTextualsAbstract" name="FairValueMeasurementsTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_MaturityOfAuctionRateSecurities" name="MaturityOfAuctionRateSecurities" type="us-types:durationStringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_StockBasedCompensationExpense" name="StockBasedCompensationExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wdc_UnvestedEmployeeServiceShareBasedCompensationStockOptionAwardsAndEmployeeStockPurchasePlanRightsIssuedButNotYetRecognized" name="UnvestedEmployeeServiceShareBasedCompensationStockOptionAwardsAndEmployeeStockPurchasePlanRightsIssuedButNotYetRecognized" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="wdc_OtherCurrentAssetsMember" name="OtherCurrentAssetsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ForeignExchangeContractsTextualsAbstract" name="ForeignExchangeContractsTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ForeignExchangeContractsOpenedDuringPeriod" name="ForeignExchangeContractsOpenedDuringPeriod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wdc_ForeignExchangeContractsClosedDuringPeriod" name="ForeignExchangeContractsClosedDuringPeriod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wdc_ShareBasedCompensationOptionsGrantedWeightedAverageExercisePrice" name="ShareBasedCompensationOptionsGrantedWeightedAverageExercisePrice" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ShareBasedCompensationOptionsExercisesInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationOptionsExercisesInPeriodWeightedAverageExercisePrice" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ShareBasedCompensationOptionsOutstandingRemainingContractualLife" name="ShareBasedCompensationOptionsOutstandingRemainingContractualLife" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_ShareBasedCompensationOptionsExercisableRemainingContractualLife" name="ShareBasedCompensationOptionsExercisableRemainingContractualLife" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_ShareBasedCompensationOptionsExercisableIntrinsicValue" name="ShareBasedCompensationOptionsExercisableIntrinsicValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="wdc_ShareBasedCompensationFairValueAssumptionsSuboptimalExerciseFactor" name="ShareBasedCompensationFairValueAssumptionsSuboptimalExerciseFactor" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_DebtAdditionalTextualsAbstract" name="DebtAdditionalTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ShareBasedCompensationArrangementByShareBasedPaymentsAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm" name="ShareBasedCompensationArrangementByShareBasedPaymentsAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_EstimatedImpactOfProposedIRSAdjustmentsOnPretaxIncome" name="EstimatedImpactOfProposedIRSAdjustmentsOnPretaxIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="wdc_KomagMember" name="KomagMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_FeesToBePaidToOtherPartyIfAcquisitionDoesNotCloseBySpecificDate" name="FeesToBePaidToOtherPartyIfAcquisitionDoesNotCloseBySpecificDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_RevolvingCreditFacilityRelatedToAcquisitionMaximumBorrowingCapacity" name="RevolvingCreditFacilityRelatedToAcquisitionMaximumBorrowingCapacity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_TermLoanFacilityRelatedToAcquisitionMaximumBorrowingCapacity" name="TermLoanFacilityRelatedToAcquisitionMaximumBorrowingCapacity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_CommittedRevolvingCreditFacilityRelatedToAcquisition" name="CommittedRevolvingCreditFacilityRelatedToAcquisition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_CommittedTermLoanFacilityRelatedToAcquisition" name="CommittedTermLoanFacilityRelatedToAcquisition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_NumberOfSharesOfCommonStockToBeIssuedRelatedToAcquisition" name="NumberOfSharesOfCommonStockToBeIssuedRelatedToAcquisition" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_FairValueAndBalanceSheetLocationAbstract" name="FairValueAndBalanceSheetLocationAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_RestructuringAndOtherNet" name="RestructuringAndOtherNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wdc_LossOnInvestments" name="LossOnInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="wdc_NonCashPortionOfRestructuringAndOtherNet" name="NonCashPortionOfRestructuringAndOtherNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wdc_ConsolidatedValuationAndQualifyingAccountsAbstract" name="ConsolidatedValuationAndQualifyingAccountsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_OrganizationAndSummaryOfSignificantAccountingPoliciesTextualsAbstract" name="OrganizationAndSummaryOfSignificantAccountingPoliciesTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ReservesForPotentialCreditLosses" name="ReservesForPotentialCreditLosses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_ConcentrationOfCreditRiskPolicyTextBlock" name="ConcentrationOfCreditRiskPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_RevenueAndAccountsReceivablePolicyTextBlock" name="RevenueAndAccountsReceivablePolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_LitigationAndOtherContingenciesPolicyTextBlock" name="LitigationAndOtherContingenciesPolicyTextBlock" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_CommitmentsAndContingenciesTextualsAbstract" name="CommitmentsAndContingenciesTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_AsiaMember" name="AsiaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_EuropeMiddleEastAndAfricaMember" name="EuropeMiddleEastAndAfricaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_SummarizesTableOfOperationsByGeographicAreaAbstract" name="SummarizesTableOfOperationsByGeographicAreaAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_BusinessSegmentGeographicInformationAndMajorCustomersTextualsAbstract" name="BusinessSegmentGeographicInformationAndMajorCustomersTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_StockOptionActivityAbstract" name="StockOptionActivityAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_OptionsOutstandingAndExercisableUnderStockPlansAbstract" name="OptionsOutstandingAndExercisableUnderStockPlansAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_EmployeeStockPurchasePlanAbstract" name="EmployeeStockPurchasePlanAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ShareholdersEquityTextualsAbstract" name="ShareholdersEquityTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_CommonStockRemainOutstandingAndExercisableUnderPriorStockPlansOptionForPurchase" name="CommonStockRemainOutstandingAndExercisableUnderPriorStockPlansOptionForPurchase" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_DeferredTaxLiabilitiesDepreciation" name="DeferredTaxLiabilitiesDepreciation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_CreditCarryforwardsAvailableToOffsetFutureTaxableIncome" name="CreditCarryforwardsAvailableToOffsetFutureTaxableIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetMaturities" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetMaturities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="wdc_ExistingTechnologyMember" name="ExistingTechnologyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_SupplyAgreementMember" name="SupplyAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_OtherIntangibleAssetsTextualsAbstract" name="OtherIntangibleAssetsTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_RestructuringAndSaleOfFacilityTextualsAbstract" name="RestructuringAndSaleOfFacilityTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_SiliconSystemsMember" name="SiliconSystemsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_SemiconductorWaferFabricationFacilityMember" name="SemiconductorWaferFabricationFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_AcquisitionsTextualsAbstract" name="AcquisitionsTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_OthersMember" name="OthersMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_TermsOfEmployerContribution" name="TermsOfEmployerContribution" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ContractTerminationAndOtherExitCosts" name="ContractTerminationAndOtherExitCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wdc_BusinessAcquisitionPurchasePriceAllocationInProcessResearchAndDevelopment" name="BusinessAcquisitionPurchasePriceAllocationInProcessResearchAndDevelopment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="wdc_HitachiGlobalStorageTechnologiesMember" name="HitachiGlobalStorageTechnologiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_MagneticMediaOperationsMember" name="MagneticMediaOperationsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ShareBasedCompensationArrangementByShareBasedPaymentAwardsEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardsEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_RangeOneMember" name="RangeOneMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_RangeTwoMember" name="RangeTwoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_RangeThreeMember" name="RangeThreeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_RangeFourMember" name="RangeFourMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_OutstandingAwardsAndSharesAvailableForAwardMember" name="OutstandingAwardsAndSharesAvailableForAwardMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_StockRepurchaseProgramMember" name="StockRepurchaseProgramMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_AdditionalShareholdersEquityTextualsAbstract" name="AdditionalShareholdersEquityTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_NetUndistributedEarningFromForeignSubsidiaries" name="NetUndistributedEarningFromForeignSubsidiaries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_LongTermPurchaseCommitmentInYearOne" name="LongTermPurchaseCommitmentInYearOne" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_LongTermPurchaseCommitmentInYearTwo" name="LongTermPurchaseCommitmentInYearTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_LongTermPurchaseCommitmentInYearThree" name="LongTermPurchaseCommitmentInYearThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_LongTermPurchaseCommitmentInYearFour" name="LongTermPurchaseCommitmentInYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_LongTermPurchaseCommitmentInYearFive" name="LongTermPurchaseCommitmentInYearFive" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_AmountOfBenefitThatMayBeRecognizedForUncertainTaxPosition" name="AmountOfBenefitThatMayBeRecognizedForUncertainTaxPosition" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_QuarterlyResultsOfOperationsUnauditedTextualsAbstract" name="QuarterlyResultsOfOperationsUnauditedTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_SummarizesTableOfAllSharesOfCommonStockReservedForIssuanceAbstract" name="SummarizesTableOfAllSharesOfCommonStockReservedForIssuanceAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_SummarizesTableOfAllSharesOfCommonStockReservedForIssuanceTableTextBlock" name="SummarizesTableOfAllSharesOfCommonStockReservedForIssuanceTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_OriginalMaturitiesOfInvestments" name="OriginalMaturitiesOfInvestments" type="us-types:durationStringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_GrantedStockOptionsFairValueAssumptionsTableTextBlock" name="GrantedStockOptionsFairValueAssumptionsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_PercentageThresholdOfCompanysNetRevenueToDetermineMajorCustomer" name="PercentageThresholdOfCompanysNetRevenueToDetermineMajorCustomer" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_OperatingLeasesExpirationDates" name="OperatingLeasesExpirationDates" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ShareBasedCompensationFairValueAssumptionsPostVestingTerminationRate" name="ShareBasedCompensationFairValueAssumptionsPostVestingTerminationRate" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanTermination" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanTermination" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_UnvestedEmployeeServiceShareBasedCompensationStockOptionAwardsAndEmployeeStockPurchasePlanRightsIssuedButNotYetRecognizedPeriodForRecognition" name="UnvestedEmployeeServiceShareBasedCompensationStockOptionAwardsAndEmployeeStockPurchasePlanRightsIssuedButNotYetRecognizedPeriodForRecognition" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_OptionsOutstandingToPurchaseSharesWithExercisePriceBelowCompanyStockPrice" name="OptionsOutstandingToPurchaseSharesWithExercisePriceBelowCompanyStockPrice" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_OptionsOutstandingToPurchaseSharesWithExercisePriceBelowCompanyStockPriceIntrinsicValue" name="OptionsOutstandingToPurchaseSharesWithExercisePriceBelowCompanyStockPriceIntrinsicValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_EligibleEmployeePayrollDeductionAmountForEmployeeStockPurchasePlan" name="EligibleEmployeePayrollDeductionAmountForEmployeeStockPurchasePlan" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_PercentageOfMarketValueForPurchasesWithinEmployeeStockPurchasePlan" name="PercentageOfMarketValueForPurchasesWithinEmployeeStockPurchasePlan" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_EmployeeStockPurchasePlanOfferingPeriod" name="EmployeeStockPurchasePlanOfferingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ExercisePriceForStockPurchaseRight" name="ExercisePriceForStockPurchaseRight" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_AmountAtWhichEachStockRightIsRedeemableByCompany" name="AmountAtWhichEachStockRightIsRedeemableByCompany" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_FutureBenefitOfCurrentYearStockBasedCompensationDeductions" name="FutureBenefitOfCurrentYearStockBasedCompensationDeductions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="wdc_NetOperatingLossBenefitsRelatedToStockBasedCompensationDeductions" name="NetOperatingLossBenefitsRelatedToStockBasedCompensationDeductions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_FederalAndStateTaxCreditCarryforwards" name="FederalAndStateTaxCreditCarryforwards" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="wdc_CompanyContributionsVestPeriod" name="CompanyContributionsVestPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_RecognitionOfLiabilitiesForUncertainTaxPositionsDescription" name="RecognitionOfLiabilitiesForUncertainTaxPositionsDescription" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_FairValueOfEmployeeStockPurchasePlanPurchaseRightsGrantedTableTextBlock" name="FairValueOfEmployeeStockPurchasePlanPurchaseRightsGrantedTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_AdjustmentsToAdditionalPaidInCapitalTaxEffectOfEmployeeStockPlans" name="AdjustmentsToAdditionalPaidInCapitalTaxEffectOfEmployeeStockPlans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="wdc_BasisOfPresentationPolicyTextBlock" name="BasisOfPresentationPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_RecentAccountingPronouncementsPolicyTextBlock" name="RecentAccountingPronouncementsPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_PropertyPlantAndEquipmentTableTextBlock" name="PropertyPlantAndEquipmentTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_PercentageOfClientContributionToCompanysNetRevenue" name="PercentageOfClientContributionToCompanysNetRevenue" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_AssetsAtFairValue" name="AssetsAtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="wdc_CreditFacilityRelatedToAcquisitionMaximumBorrowingCapacity" name="CreditFacilityRelatedToAcquisitionMaximumBorrowingCapacity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_CommittedCreditFacilityRelatedToAcquisition" name="CommittedCreditFacilityRelatedToAcquisition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_ProductWarrantyPeriodMinimum" name="ProductWarrantyPeriodMinimum" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ProductWarrantyPeriodMaximum" name="ProductWarrantyPeriodMaximum" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_GrantDateFairValueOfSharesUnderlyingRestrictedStockAwards" name="GrantDateFairValueOfSharesUnderlyingRestrictedStockAwards" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wdc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingNumber" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingWeightedAverageGrantDateFairValue" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_LongTermDebtScheduleTableTextBlock" name="LongTermDebtScheduleTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_BusinessSegmentGeographicInformationAndMajorCustomersAbstract" name="BusinessSegmentGeographicInformationAndMajorCustomersAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_BusinessSegmentGeographicInformationAndMajorCustomersTextBlock" name="BusinessSegmentGeographicInformationAndMajorCustomersTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_CompanySponsoredRetirementPlanTextualsAbstract" name="CompanySponsoredRetirementPlanTextualsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_AmountOfCompanysOutstandingCommonStockAnnouncedAsAcquiredOrTenderedOfferForExercise" name="AmountOfCompanysOutstandingCommonStockAnnouncedAsAcquiredOrTenderedOfferForExercise" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ShareBasedCompensationSharesAuthorizedUnderStockOptionsPlansExercisePriceRangeUpperRangeLimit" name="ShareBasedCompensationSharesAuthorizedUnderStockOptionsPlansExercisePriceRangeUpperRangeLimit" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_ShareBasedCompensationSharesAuthorizedUnderStockOptionsPlansExercisePriceRangeLowerRangeLimit" name="ShareBasedCompensationSharesAuthorizedUnderStockOptionsPlansExercisePriceRangeLowerRangeLimit" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_RangeFiveMember" name="RangeFiveMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_AssetsAtFairValueAbstract" name="AssetsAtFairValueAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_LiabilitiesAtFairValueAbstract" name="LiabilitiesAtFairValueAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_LiabilitiesAtFairValue" name="LiabilitiesAtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wdc_AccruedExpensesMember" name="AccruedExpensesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_NumberOfSharesToBeIssuedForEveryOneShareActuallyIssuedInConnectionWithAward" name="NumberOfSharesToBeIssuedForEveryOneShareActuallyIssuedInConnectionWithAward" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_AggregateValueOfRestrictedStockAwardsVested" name="AggregateValueOfRestrictedStockAwardsVested" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wdc_DebtCommitmentFeePerAnnumAsPercentageOfUnfundedAmountCommittedToBeBorrowedUnderSeniorFacility" name="DebtCommitmentFeePerAnnumAsPercentageOfUnfundedAmountCommittedToBeBorrowedUnderSeniorFacility" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="wdc_DebtCommitmentFee" name="DebtCommitmentFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wdc_NolCarryforwardAvailableToOffsetFutureFederalTaxableIncomeExpirationPeriod" name="NolCarryforwardAvailableToOffsetFutureFederalTaxableIncomeExpirationPeriod" type="us-types:durationStringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_NolCarryforwardAvailableToOffsetFutureStateTaxableIncomeExpirationPeriod" name="NolCarryforwardAvailableToOffsetFutureStateTaxableIncomeExpirationPeriod" type="us-types:durationStringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_EffectiveIncomeTaxRateReconciliationNondeductibleExpenses" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenses" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_ForfeitureRateOfRestrictedStockUnitValuationAssumption" name="ForfeitureRateOfRestrictedStockUnitValuationAssumption" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="wdc_FederalNetOperatingLossCarryforward" name="FederalNetOperatingLossCarryforward" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
</schema>
</XBRL>
