Who knows what else he/she has put on your computer. To be absolutely safe I would use you recovery discs and start fresh. If you do not have the discs you can usually get them from your computer manufacturer.
Windows Outreach Team
My house was broken into and one of the things taken was a HP Media Center laptop (XP Media Edition SP1, I think), which miraculously, was recovered and returned to me by the police this morning. The scum who stole it replaced the only user account I had (not password protected) with their own, so, obviously I cannot get into the computer now. Is there a way to hack the hack and get to where I can delete the user and maybe get back to my content? There is nothing irreplaceable on it, so I could reinstall from the recovery disk (if I can find it), but I would rather not have to spend the time reinstalling everything and reinstating all of my customized settings.
First thing for sure, I will do a virus scan, Spybot check, etc.....