Hi all. I have a friend that has XP Pro and he has changed something but he does not know what. He cannot log on to his computer. When he fires it up, XP starts then it shows the log on screen and the administrator icon asking for a password. It does not show any other users. He has tried every password he uses and still nothing, it won't allow him to log on. He cannot get any further than that. How can this be corrected? Is there a way to reset all passwords? Thank you for any help.