- Click the Start button, right-click Computer, and then click Properties.
- Scroll down to the bottom of the window that appears, and then, under Windows activation, click Change product key. If you are prompted for permission to continue the process, click Continue.
- Follow the instructions to change your product key and activate your copy of Windows 7.
So far so good. We bought several Microsoft licences for various products for my company and we are pleased with service, prices, communications and legality. I hope we will collaborate soon! Good job!