Windows 11 keys are agnostic, but since you've upgraded from the restricted version (10), it's possible that's why you still can't use a key to perform an upgrade.

While it seems possible to get Windows 10 Pro or Windows 11 Pro for free using generative AI this way, there are pitfalls. That is, the output is a general-purpose license key published by ...

If you’re on a Windows 11 Home PC right now, take advantage of this limited-time deal to upgrade to Windows 11 Pro on the cheap. Microsoft’s standard upgrade price is $99, but you can snag it ...

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 ...

Neowin reported on some of these incidents, as flagged up on Twitter by Sid, who posted about Windows 10 Pro keys being provided by both ChatGPT (which powers Bing AI) and Google’s Bard chatbot.

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.