Windows 10 product key not working on Windows 11

If your Windows 10 product key is not working on Windows 11, check the Windows Edition, your activation status, and then ...
PC World

Is your Windows product key reusable? Here’s how to find out

You might know your version of Windows (i.e., Windows Home or Windows Pro), and hopefully you knew how to get Windows for cheap or even free, but do you know if it ...
Ars Technica

Microsoft will stop old Windows product keys from activating new Windows installs

At least for now, though, it seems like this change will only apply to future Windows versions. We were able to activate a fresh Windows 11 Pro 22H2 install with a Windows 8 Pro product key as of this ...
Ars Technica

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

Microsoft will stop selling downloadable licenses for Windows 10 on its website on January 31, according to a message on the product pages for Windows 10 Home and Pro. Although Windows 10 will ...