Hi iam fixing a computer for a friend and the problem is that windows xp pro wont start. I turn it on and it goes through all the stuff at the start you know looking for the primary drive and stuff and than it comes up with a black screen and on it you can select to to start windows normaly or start with the last config thing. It also has some safe made things like safe mode with command prompt. Also it has a count down from 30 at the bottom and when it reached 0 it starts windows normaly. I have tried every option but none work it comes up with the windows xp screen with that loading bar it than flashes something blue and starts from the start again nothing i do helps it just keeps going through the above over and over again.