I have Windows XP from an update, at boot I had to get into the ‘boot strap’ program, press delete to enter set-up and tell it to boot from disk, somewhere in it menu you’ll find that choice. I put in the XP upgrade(from Windows 98) disc, and was given 2 options, complete or partial restore, I’ll try to get you more details, but the delete key option happens so fast I can’t hit the key in time to get to the rest of the program.
No worries, I fixed it. ;) Thank goodness, because I had no idea what your suggestion required and it scared the heck out of me.