Windows 10: Can a Windows 11 home key work on a unactivated Windows 11 Pro?

I bought the wrong licsence...

:)

 

Upgrading an unactivated Windows 10 Home to Windows 11 Pro

Hello there. This is Emily.

Yes, you can run the unactivated Windows 10 for now with limited features, mostly you can't do any personalization.

When you get the Windows 11 Pro key, you can actually use it to license your Windows 10 first and turn it to Windows 10 pro. Then you can upgrade to Windows 11. Windows 10 and 11 basically use the same license.

 

Windows 11 unactivated

I bought my friends computer, he had Windows 10, but got the Windows 11 upgrade. The computer has Windows 11 pro installed, it was working for a few months. However, after an update, Windows unactivated. I've looked the forums but nothing has worked so far, my only guess is maybe because I'm signed in with a different microsoft account? Any help is appreciated.

 

Windows 11 Home to Pro upgrade

Want to upgrade 11 Home to 11 Pro. Tried download, but apparently files transferred were for 11 Enterprise. This will not activate; error is "invalid digital license or product key". This is on a new Surface. How to proceed?

Can withdraw/delete this. The suggestion to downgrade - listed below - with a 'fake' windows 10 key works.