My computer has a Win:32 Vitro virus and while I was in the middle of removing it, my computer crashed. Now I turn my computer on, it goes to Windows and asks for the HP_Administrators password. When I hit enter (there is no password) it starts to logon but then suddendly says logging off and goes back to the logon screen. To finish removing the virus I need to be able to logon. Is there any way that I can fix this without taking my computer to an expert, because I cannot afford to have it fixed by someone. I would be very greatful to anyone who can help me.