Jim,   Was researching your error message and maybe reinstalling Windows Installer will help.    If that doesn't work, we can try a few things unless you just want to do the factory image. If you do the factory image, the computer will be like it was when you first got it.     Rick
I have a DELL Studio XPS 435MT 6gb ram 750 HD Windows Vista 64 bit6 that I bought in July 09. I am getting Error 1628 when attempting to uninstall a duplicate file listed in the Registry. Attempts to uninstall this dupe file results in Error 1628. I have attempted to System Restore selecting several dates without success. Everything points to a Registry problem. I am now considering a Dell Factory Image Restore. Would this generate a new Registry? Any suggestions? Jim
Uninstall in Registry