There's only one corrupt file identified by SFC -
Code:
Line 14344: 2013-08-22 13:26:06, Info CSI 00000309 [SR] Repairing 1 components
Line 14345: 2013-08-22 13:26:06, Info CSI 0000030a [SR] Beginning Verify and Repair transaction
Line 14348: 2013-08-22 13:26:06, Info CSI 0000030c [SR] Cannot repair member file [l:22{11}]"wuaueng.dll" of Microsoft-Windows-WindowsUpdateClient-Core, Version = 7.6.7600.256, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch
Line 14351: 2013-08-22 13:26:07, Info CSI 0000030e [SR] Cannot repair member file [l:22{11}]"wuaueng.dll" of Microsoft-Windows-WindowsUpdateClient-Core, Version = 7.6.7600.256, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch
Line 14352: 2013-08-22 13:26:07, Info CSI 0000030f [SR] This component was referenced by [l:150{75}]"WUClient-SelfUpdate-Core-CoreComp~31bf3856ad364e35~amd64~~7.6.7600.256.Core"
Line 14357: 2013-08-22 13:26:07, Info CSI 00000312 [SR] Could not reproject corrupted file [ml:520{260},l:46{23}]"\??\C:\Windows\System32"\[l:22{11}]"wuaueng.dll"; source file in store is also corrupted
Line 14362: 2013-08-22 13:26:07, Info CSI 00000314 [SR] Repair complete
I'll post a fix protocol for it later.
In the meantime, please try running the CheckSUR tool
Please download and save the CheckSUR tool from http://support.microsoft.com/kb/947821
(you'll need to look in the details for Windows 7, downloading from the Microsoft Download Center)
Run it - The tool can take anywhere from 5 mins to a couple of hours to run (or 'Install') depending on how much it has to do, and may exit silently - it may appear to freeze for most of that time, but be patient.
The result is logged in the C:\Windows\Logs\CBS\CheckSUR.log file - and an archive …\checksur.persist.log file
Then zip the CheckSUR.log and attach it to your reply.