How much does Windows 7 Ultimate 64 bit version cost?
 

I doubt will work during using Microsoft Office Home And Student and I am considering getting Windows 7. I have been shopping online and I have found Microsoft Office 2010 Serial Key and Windows 7 Upgrade. When I think of an upgrade, I think of it as something to improve Office 2010 Home And Business Serial Key I already have. Is this the case with Windows 7 64bit Key? Is it an improvement on Windows 7? If so, why hasn't the upgrade been integrated with the Windows 7 software?