Window 7 x64 sp 1.
Windows Update files load to windows/software distribution / download, but installation fails.
But unable to install:
Cumulative Security Update for Internet Explorer 9 for Windows 7 for x64-based Systems (KB2647516)
Security Update for Windows 7 for x64-based Systems (KB2654428)
Security Update for Windows 7 for x64-based Systems (KB2660465)
Update for Windows 7 for x64-based Systems (KB2640148)
Security Update for Microsoft .NET Framework 3.5.1 on Windows 7 and Windows Server 2008 R2 SP1 for x64-based Systems (KB2633873)
Security Update for Windows 7 for x64-based Systems (KB2645640)
Update for Windows 7 for x64-based Systems (KB2660075)
SP1 and many updates installed OK with only occasional failures, until the above batch.
Was able to install: Update for Office File Validation 2010 (KB2553065), 32-bit Edition
Installation date: 22/02/2012 9:44 p.m. Installation status: Successful
Have attempted to resolve with " FIXIT" , removed virus and malware security or clean boot.