Recently, I DISABLED the startup login screen in Windows XP PROFESSIONAL SP2 through Running "control userpasswords2" and unchecking the box that required a username and pass on startup.  It worked, but not in the way I'd expected; my next boot was directly into not my personal account, but the default "Administrator" account.  (My personal account is also SET to Administrator access.)  I tried disabling the default Administrator account, but when I rebooted, I was sent to the Welcome screen with the message "Your account has been disabled.  Please contact your administrator."

Assistance in configuring my computer to boot into my personal account by default would be greatly appreciated.Download TweakUI for XP from >here<.  Run TweakUI.  Logon->Autologon.  Enter the required details.TweakUI is not necessary. You were on the right track with "control userpasswords2".

When you first unchecked the "users must enter password" or whatever that checkbox is, and clicked OK it would have asked you for a username and password. By default, this would have been Administrator, which by default does not have a password. For this REASON it would have been really easy to simply hit OK, which would in turn boot you into the Administrator user from now on.

To fix the ISSUE, simply run the "control userpasswords2" again, and check the "users must enter a user name and password" check box again, and then apply. Then uncheck it again and hit OK. You should be prompted for a username and password. This is the username you want it to automatically login with each time, so put your personal username and password.

That should do it! That did indeed do it, thanks.