

To install an upgrade version of Windows 7, Windows Vista or Windows XP must be installed on your computer.

The product key is for an upgrade version of Windows 7 and a previous version of Windows wasn’t on your computer when Windows 7 was installed.You can’t use a product key for Windows 7 with Service Pack 1 (SP1) to activate a copy of Windows 7 without SP1. Check the product key to make sure it is for the version that you are trying to activate.

