Windows 10: windows 10 product key "not found", website says its activated on my pc.

basically, the title. I booted up windows 10 no problem. i have a license attached to my account, or at least i should, because it's worked the last 2 pcs ive used.


however, after building my new pc, again i started up windows, all was well. The next day (today) the little watermark is on the bottom right, and if i use the trouble shooter, it says "no windows 10 product key is found on this pc"

again, this is ****. both the microsft website, and the setting of the pc say i have W10 installed and activated, but the settings wont "activate" it, and the watermark remains.


I can find nothing about this on the website, and i can't just re-enter the product key because its attached to my account. Any ideas?

:)

 

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:

1. Is this all i need to do?
2. How do i get rid of product key showing still with product key showing apps on my friend's computer?
3. 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.

 

Activate windows 10 after re-installing (I have lost my product key)

I own a Lenovo T430 laptop. In 2017, I installed Windows 10 using my original Windows 7 product key. Unfortunately, I cannot find that product key anymore. I need to re-install windows 10. Will it be automatically activated after the installation, if I skip the step of asking the product key during the installation?

In my opinion, I believe that my laptop will have a digital entitlement stored on the Microsoft Activation Servers and this will not be a problem. Is that true?

If not, please suggest me a solution or a workaround.

 

windows 10 activation product key

Windows 10 is different from previous versions of Windows, you do not need to know your Product Key. If for example you want to re-install Windows, it will be activated automatically as long as your system was previously activated.

If you previously had Windows 10 installed and activated on that PC during the installation process skip the steps which ask for a product key and select the option 'I am Reinstalling Windows 10 on this PC',
and activation will not be an issue, your PC will have a digital entitlement stored on the Microsoft Activation Servers