New
#11
@FeriM
You can install and run ShowKeyPlus on your Windows 7 partition. It will show you your Windows 7 key.
ShowKeyPlus
Then you can take the Windows 7 key, and do a clean install of Windows 10 on your computer.
During install, when it asks for the product key, just type in your Windows 7 key.
Then... you will have a nice clean install of Windows 10. No muss, no fuss.
A clean install of Windows 10, is much better than Windows 10 upgraded from Windows 7.