reinstalling xp in User to User Help Posted February 20, 2007 · Report reply I had exact same problem reinstalling XP on my comp. I tried installing 5 or 6 times with the xp disk that came with my dell (it has been upgraded so much it isn't a dell anymore). It turned out it was a weak and dying Power supply. Go to http://extreme.outervision.com/psucalculator.jsp and plug in your system config to get how many watts your power supply needs. Chances are if it's a dell computer your power supply was too weak to begin with.