Microsoft will stop old Windows product keys from activating new

Windows 7 and 8 keys still seem to work for now, but that may be ending.

Prevent Windows 10 installer from using the preinstalled serial key without disabling UEFI - Super User

Microsoft will stop selling Windows 10 on January 31, but workarounds remain

How to Get Windows 11 or Windows 10 for Free (or Under $20)

How to get Windows 11 cheap (or even for free)

How to re-install Windows 10 without a product key (Digital License / - Microsoft Community

How to Deactivate Windows 10/11 by Uninstalling Product Key - MiniTool

End of support for Office (2013, 2016, 2019): No Microsoft 365 access, and outdated OS versions – 4sysops

Windows 7 key doesn't work for Windows 10 - Microsoft Community

Windows 10/11: Upgrade path with Windows 7 and Windows 8.1 keys no longer works (Sept. 2023) – Born's Tech and Windows World

You can no longer activate new Windows 11 builds with Windows 7 or 8 keys - Neowin

How to Find Your Original Windows 10 Product Key

Microsoft Ends Free Windows 11 Upgrade:See Who Can Upgrade - Venom's Tech

How to Transfer Windows 10/11 License to a new PC.

How to Recover Your Windows 10 Product Key - Make Tech Easier