Microsoft has released Fix It 50202 addressing Windows Update problems. This Fix It does a good job and should be the first thing if you have a computer where several Windows Updates are failing.
The usage is quite simple. Just run the Fix It and choose the “Agressive” mode. Agressive mode removes all Windows Update settings but therefore the result will be better.
After the Fix It has finished you must reboot the computer as soon as possible, especially if you have configured a GPO to connect your clients to a WSUS server.
After reboot open a Command Prompt and type:
After some time the previously failed updates will be downloaded and hopefully installed without errors.