So whenever I press Alt+Ctrl+Delete, I get this error saying "Administrator has blocked task manager for this account". Well this is the only account on the computer. Is there any way I can re-enable it? Like maybe in safe mode or something? I dunno how.
You could try changing the settings for that account.
there should be a registry entry that will re-enable this
ahh here we are:
http://support.microsoft.com/kb/555480