I have a sony vaio pcg 7h1l. Had it for a little over a year now. Got a virus a while a go, but took it off. Then it would take about 4-5 times just to be able to log on. So i decided to upgrade from Windows XP media center to XP pro. In that i accidently made my system a multiboot system. I could log on and it worked just fine but absolutely no drivers. So I went back and did it again but this time it keeps freezing at the installing windows screen. The cursor still works and the scrolling bar at the bottom is still going but nothing is going on. The screen says Approximately 39 minutes to complete and have left it for way past an hour and still no change. Under normal circumstances I would wipe the hard drive and start from scratch but I have very important files on it and can't afford to do that. What can I do?