clisp, Thank you for using the Dell Community Forum. Can you start the computer and press the F8 key while booting to enter SAFE MODE? If you can get into safe mode go into the conrol panel and creat another user profile.
I restarted my computer and then tried to type in my password to log into my user profile and it tells me something like "Can't log into user service profile"  that is if I type in the right password but if I type in the wrong password it tells me it is incorrect.  I only have one proflie on the computer so I don't know how to log into my computer at all.
Can't log into Vista.