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 ...

Microsoft is investigating Windows activation issues that appear to be linked to the company’s recent move to block Windows 7 and Windows 8 keys from activating copies of Windows 10 and Windows 11.

A single purchase of a Windows 10 Pro license nets you an activation key that you can install on up to three different devices. It's also a lifetime license, so you can enjoy what this feature ...