QUESTION My laptop, which runs Windows 7 64bit, frequently fails to install Windows Update files. What should I do? Ralph Strandmann
HELPROOM ANSWER It sounds as though you've got corrupt Windows Update files, Ralph. Given that the good files have already been applied, it's safe to delete all the update files stored on your PC. You should then be able to successfully download and update those that previously failed.
Right-click My Computer and select Manage. Expand 'Services and Applications', then choose Services. Right-click Automatic Updates and choose Stop.
Next, navigate to the Windows System folder (C:\Windows, where C is your main drive) and delete the SoftwareDistribution folder located there.
Reboot the PC, then run Windows Update to download and install any new or missing updates.
This should fix the problem. If the problem continues, deselect the update in Windows Update and Windows won't attempt to install it again.