when i turn the comp on it goes to the log on screen as usual. then when i type in my password and hit enter it logs on and plays the windows start up tune, the wallpaper appears but like 3 seconds later it just goes back to the log on screen and says logging off. then it just stays on the log in screen.
i dont know how to enter safe mode, i press f2 on start up but in the bios menu there is now safe mode option.