I vaguely remember having a problem like that in the distant past.
Today was a bit of a busman's holiday here as I ended up doing a complete re-install of XP Home with all service packages, virus protection, wireless card, wireless keyboard set, printer, and Office package a computer I use for streaming to my TV.
While I did not clock the operation, a rough idea of time taken was just after morning beagle walk (8:30 am ) until now ( 2:00pm). I will admit I also managed to do numerous other things in between so I did not sit right on top of the install process. It is a dual core with 2 gig ram and a SATA 250 hd.
The next thing I plan on doing is finding my copy of Norton Ghost which I bought years ago and a few disks to Ghost this bad boy before I end up in this situation again. It was taken out by a virus the other day that McAfee didn't catch. The new install is now running Avast....I had gone out to look for a download of The Pentegon Wars and only browsed a couple sites, I did not even start a down load.
WAM, a trojan took out the root.
First I lost my main computer to a MOBO failure now this. It's scary when I only have three computers on line.
A replacement computer is on order (barebones), a quad core, ASUS MOBO 2gig ram, a 1T hd, 500w ps, and dvd burner. It replaces a unit that has been a reliable preformer for I don't remember how long, maybe five years or better, which I also built from parts and an existing case. Along the way I have had to r/r hard drives, power supplies and such. I probably have spent less than a single trip to the shop costs.