Windows 10: Reverting back to genuine windows

Hi..I recently bought a laptop with genuine windows 10 home OS but last night I tried to upgrade to win 10 pro with a key I got from a website and then I used the KMS to activate it. But I don't want to support pirated OS so want to revert back to my original genuine windows. So kindly help me how to revert back or do I need to reinstall windows from scratch. I don't want to lose my digital licence so please help.

:)

 

Windows 7 not genuine problem

It seems like that's an OEM windows copy, it will do that the every time you reinstall the OS. If you have the key, next time you see the "not genuine windows copy" click it and choose to activate by phone, everything else is pretty straight forward as it explains step-by-step. If it doesn't work, then its highly likely that you got a Pirate copy.

 

Display langage reverted back


I followed the suggested actions: everything OK from step 1. and I attach as requested the output for step 2.



for convenience I attach the google translation



I'm ready to act following suggestions (if any) before...going through the restore (please don't misunderstand, I'm not looking forward doing it).

I appreciate in any case your help

 

windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx