Windows 10: Product key association disable on old pc

Hey,


I sold my old pc to a friend. He installed some missing parts (HDD, GPU and RAM). Then we installed Windows 10 Home 64-bit version from USB stick. I was surprised to see that windows was automatically activated after that. I did some digging and found out that it is using my product key, which i use now in my own new pc. My friend does not have his own product key, the idea was that he just uses the unactivated windows with limited features.


I uninstalled my Windows 10 product key via command prompt in friends computer (as i understand this is only local solution, if he reinstall windows or clicks the active button, it reactivates automatically with my product key) and now it says windows is not activated, but my product key is still shown with Produkey app in his pc. So far windows is still activated my own pc.


My questions:

• Is this all i need to do?
• How do i get rid of product key showing still with product key showing apps on my friend's computer?
• Is there a way to get rid of association of my product key on that old pc that i sold to friend?

EDIT: I originally installed windows 10 via upgrade option from Windows 7, if that matters.

:)

 

Old Product Key

If you're using a key you "found online", you are violating the Microsoft License Agreement and your copy is illegal.

 

Old Product Key

Thanks Andre

I think the original key was on the back of the instruction manual, which I'd lost!

In the meantime I had done a search on line and found a key that worked (albeit with some limitations to the programme).

Many thanks for taking the time to reply.

Rob

 

It's not "your" product key. It is the generic Windows 10 product key that everyone gets when they upgrade from Windows 7/8/8.1.
Clean Windows 10 Install for Free: This is the Only Way | PCsteps.com

Scroll down to Can I Find the Windows 10 Product Key

And, BTW, using Windows 10 unactivated with the limited features violates the End Users License Agreement:
https://www.microsoft.com/en-us/Uset...10_English.htm

Your friend that has the computer now should just enter the generic Windows 10 Home product key and let it activate from the digital license stored on Microsoft Activation Servers.

This is the Windows 10 Pro Product key from an upgrade (on my computer):




this is the Windows 10 Home Product key from an upgrade (also on my computer):