I'm going to be upgrading my CPU & Mobo in a few days and I want to know If I have to reinstall windows, I've looked at many threads and they all have different answers. Some have said I just need a new Win7 Key and all kinds of stuff. So I'm very confused at this point. And If I do have to reinstall is there a way I can keep all my files or any site that I can upload my files? Thanks