Download System Update Readiness Tool for Windows Server 2008 R2 x64 Edition (KB947821) [October 2014] from Official Microsoft Download Center

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System Update Readiness Tool for Windows Server 2008 R2 x64 Edition (KB947821) [October 2014]

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This tool is being offered because an inconsistency was found in the Windows servicing store which may prevent the successful installation of future updates, service packs, and software.