I could not remember what the error was because it would take forever to pop up. I think it pretty just said it cannot proceed or something like that. But yesterday when I tried to restore, I had no more restore points... I had no clue what happened to them. And I already tried re-installing and re-registering Windows Installer and nothing ever worked. And I read somewhere that I should try un-installing XP Service Pack 3 and installing Windows Installer 3.1 but after I uninstalled the SP my computer would never start up again... every time it got to the windows logo screen it would keep restarting... so I think that is the end of that computer...