I have a Dell Precision M6300 laptop and running windows xp pro. I was admin, and there were 2 other users accts. I don't know what happened, but now I can only log on under one of the user accts. I cannot change anything. I know the password for the admin, but it wont let me do anything. I have done F8 Safe Mode, F12 Bios, I go to control panel and try to create a new user acct, I cannot do that. I cannot switch users. I have read the forums and have tried (maybe I didn't do something right) but I cannot do anything. I don't even get the welcome screen, I can only enter the user name and password. Any suggestions? Sorry if you have answered, I've tried to research. I would even like to just restore factory setting, but I don't have permission.