kol12 :
dexxterlab97 :
Why not upgrade to Win10 and then roll back. I am sure since you upgraded to win10 your product will be registered then.
Strongly considering this but I'm worried the rollback might not go smoothly. I saw a screenshot warning that some apps might have to be reinstalled after the rollback.
I make regular Macrium Reflect system image backups so I suppose I could always restore If I needed to...
A Macrium Reflect full disk image is better than relying on the Win 10 roll back function.
Create a new Image, right before you Upgrade.
If the Upgrade fails, or you don't like it....recover from that Image.
I have done this.
It works.