I don't see any reason to go through the trouble of reinstalling the OS, the new hardware was just a graphics card, sound card, DVD-ROM drive, and more RAM. Basically things that I've been meaning to upgrade...nothing that major. I am wanting to get rid of these files because I'd like to free up some hard drive space. I've tried installing a new hard drive which didn't go too well, and required me to spend even more money for repairs. So I'm not doing that again.