This is a friend's computer, I built my own about a year, ago.
This computer is an old gateway, 800 celeron processor, millenium came with it, but everytime she tried to install a program it would get half-way then the computer would restart by itself without installing anything. THe internet connection was really good and fast, no problem connecting to any website's, so I figured it was the operating system. I first booted from a windows 98 boot disk, then I deleted the primary partion. I put in the windows xp disk and restarted the CPU and change the setup to boot from the cd-rom. Once it booted it ask me if I wanted to install a fresh copy of windows xp, I hit enter and ask me if I wanted to create a partion for xp, I hit enter and then it should various files being transferred on the bottom of the screen, after they finished installing the screen goes blank(Blue Screen), I even left it on for 12 hours and the screen was still blank.