I have a Dell 2400 and put a larger hard drive in it. My XP home is a purchased version, and when I attempt to install it it goes through the format and preliminary checks and then every file it tells me is damaged after that. It will not install and I have gone through 3 new drives and still cannot get it on. However, I can put these drives in either of my other computers and the program installs fine. Any idea what is going on here?