Upgrading from Windows Vista to Windows 7 requires purchasing a retail license key and verifying that your specific version of Vista supports an Because Windows 7 is no longer officially sold by Microsoft, you must source a legitimate product key from third-party retailers. 1. Where to Buy
: Some users find it more cost-effective to buy a used PC that already has a Windows 7 sticker/license key affixed to it. 2. Verify Your Upgrade Path buy windows 7 upgrade from vista
Microsoft no longer sells Windows 7 directly. You can find retail copies or product keys through: Upgrading from Windows Vista to Windows 7 requires