My friends computer will load up until it gets to the windows xp loading screen and then it will just hang there. I was able to get him into msdos and run check disk, I had him do chkdsk/r and it worked up until it hit 75% then it just hung there. He doesn't really want to format his hd because he has some school work and stuff on there that he doesn't want to lose. I know the computer is running windows xp but I am not sure if it is home or professional. I am not sure of the specs but if you need them I can find out ... This is what I do know, the computer is only a few months old and it is custom built. Thanks for any advice in advanced.