My mother's computer auto-downloaded a Windows Update file. I emphasize that it auto-downloaded because I am aware of the "Microsoft Update" email virus that's going around, and I'm fairly confident that it didn't infect this computer. The update may or may not have installed correctly; I wasn't there to see. As soon as she clicked on the Start button to select Shut Down, the computer hard-reset and now is stuck in a cycle in which it fails to load Windows properly, reboots, apologizes for failing to start Windows properly, and proceeds to repeat the cycle. Aside from the self-esteem-shattering experience it must be for the computer to be constantly failing at its sole purpose in life, it's also damn frustrating for anyone who needs to USE it for anything. It won't even load far enough to run System Restore or Norton Antivirus; it doesn't make it past the logo screen. Does anybody know what may be causing this to happen?