I am using Windows XP and I am considering getting
Windows 7 X64. I have been
Windows 7 Ultimate 64 Bit online and I have found Windows 7 and
Windows 7 Professional Activation. When I think of an upgrade, I think of it as something to improve something that I already have. Is this the case with
Discount Windows 7? Is it an improvement on Windows 7? If so, why hasn't the upgrade been integrated with the
Windows 7 Pro Product Key?