Installation of Service Pack 1 for Windows 7 fails with errors 0x8004a029 or 0x80004005 - E_FAIL

An installation of Service Pack 1 (SP1) for Windows 7 may fail and return either of the following error codes: 0x80004005 - E_FAIL Unspecified error 0x8004a029 ... Explore these great resources across Microsoft.com

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