Windows 10: I can't make changes because the activation key has not been validated. I tried to press...

I was given a computer by a friend. The computer was a demo model and belonged to his company. He has made it clear that the computer is a donation and not to sold on etc. I have tried setting up the computer with me as admin and my two children as secondary users with certain restrictions. However I can't make changes because the activation key has not been validated. I tried to press validate but I don't have an activation key. The key it seems belongs to the company. So if the company already purchased the software surely if it was donated to me I should be entitled to use the computer with

:)

 

AT&T Activates Call Validation Displays

Source: AT&T Activates Call Validation Displays

 

Upgraded PC win7 to win10 tried to install image activation not valid?


Ok so I followed the guide step by step
I installed programs using chocoltey, I installed office2016 and adobe cloud, I installed photoshop, dreamweaver, I set a default theme, I edited the policy settings to lock down the PC I set the start menu and lock screen images, I uninstalled most of the windows apps, I installed avast business and disabled until reboot

this is my sysprep working as I expected




I created an image file then restarted the machine and get this error




guess its back to the drawing board

 

Windows is not activated with valid product key

I bought this license and activated this Windows like 1 or 2 years ago, and it's a valid key, I had my Windows Activated and everything works perfectly until today when I saw a watermark at to bottom corner asking me to Activate Windows.

I tried to reenter my product key but it says that I do not have a valid product key and refuse to activate my windows

Is there any solution for this?

P.S. I didn't reinstall my Windows or make any hardware change