Is it possible to activate somehow Windows 8.1 Pro with the help of Windows 10 Pro? With a path like this to be followed: Install Win 7 Pro -> Upgrade to Win 10 Pro -> Downgrade to Windows 8.1 Pro. Which is the way to transfer the license by extracting it from a Windows 10 Pro fresh install and activated, then inserting it or injecting it into a Windows 8.1 Pro fresh install (On the same hardware or maybe a different hardware)? Thank You to All in advance for the feedback, regardless if it is possible or not.