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I recently reformatted and reinstalled Vista after a bad case of rootkit and trojan infection. All went swimmingly and malwarebytes gave me a clean bill of health but recently I have noticed that I now have 2 administrator accounts present upon login and my pc tries to automatically login to one of them but doesn't because it says the password is wrong. I then log in to my own user account that I set up in my name.
Has anyone got any ideas what this could be? I definitely only had 1 administrator account and 1 user account when I first reinstalled the OS but I now have 2 administrator accounts and my 1 user account and I never set anything up to auto-login. This behaviour seems to have happened since Windows update installed Vista SP1 so I wonder if it has got anything to do with that?