To activate this specific version, you historically needed a separate, dedicated "Media Center Pack" key in addition to your Pro license. Risks of Key Generators
: Using illegitimate keys violates Microsoft’s terms of service and is technically illegal. Legitimate Ways to Activate Windows 8.1 windows 81 pro with media center product key generator top
If you previously owned a licensed version, you can often retrieve your key through these methods: To activate this specific version, you historically needed