resolve Windows Update issues

try all the steps from this KB article first:

"Failure configuring Windows updates. Reverting changes. Do not turn off your computer" error when you try to install Windows updates
http://support.microsoft.com/kb/949358/en-us

If this doesn't work, we must look for error messages in the following log files to see the cause of Windows update failures:

Please run the Windows Explorer and copy the folder "C:\Windows\Logs\CBS\" to your document folder, also copy the file C":\Windows\Inf\setupapi.dev.log" , the "C:\Windows\WindowsUpdate.log" and the file "C:\Windows\winsxs\poqexec.log" to your document folder (otherwise you can't upload it), zip all files into 1 ZIP and upload the zip to your SkyDrive7dropbox and post a link here.