However, it seems my default user account is missing. It does not appear on the welcome screen, nor on the "User Accounts" tool in the control panel. I tried this: http://support.microsoft.com/KB/297221, but the account name doesn't even appear on the list. The user folder in Documents & Settings is still there though, with everything in it. There's just no way to log into the user account.
I did some an unsuccessful XP repair a few days ago, maybe it did something. What should I do? Help, please! And thanks!