I recently replaced the motherboad, CPU, and RAM out of a family friend's computer. I erased all of the drivers off the harddrive beforehand and painstakingly let Windows discover everything again. Everything seems to work ok, except for the fact that it takes 20-30 minutes for Windows to load. Once it loads however, it runs like normal, with no lag. Anyone have any ideas on what to check? I can't switch OS's (to XP) so that's out of the question. They want to go without reformating, but push come to shove I can get them to agree to it. I just want to make sure I check every avenue before I do.