Perform a Disk Cleanup: Click on the blue Vista start button and then on the Computer entry in the Start Menu. Right-click on your hard drive and select Properties > Disk Cleanup > Files from all users….. More Options > Clean Up (System Restore and Shadow Copies)

Suggestions: How do I reset the Windows Update settings? [link] Register Windows Update engine files [link] Re-Install “Windows Update Agent”. Download and install the latest version of “Windows Update Agent ” on your computer