Windows 10: Windows lost activation after update

Good day.I sincerely hope you can help. My PC did a Windows update on 14/02/25, and since then, Windows keeps telling me that it is not activated. - I tried the CMD with this line, "wmic path softwarelicensingservice get OA3xOriginalProductKey," but it just returns empty. - I ran the troubleshooter too many times to count, but it keeps saying the same thing: "Troubleshooting has completed. We weren't able to activate Windows on this device."- I've rolled back the updates, to no avail. Reinstalled the updates. Nothing. This is a brand new copy of Windows 11 Pro, that I bought in December 2023.

:)

 

Microsoft to Revamp Activation System with Windows 9

So... Lost an account - lost everything, huh? Don't like this system much, but I can't really blame Microsoft for doing that as long as it's the most popular way of handling "protected" stuff (Steam is a "good" example).
There are even few advantages:

• An access to updated and "personalized" ISOs (for example, purchasing Windows 8 will give you Windows 8.1 and Windows 8.1 Update when they come out). No need to struggle with Windows ADK anymore.
• Easy way of "unbinding" your license if you don't need it on your current (running) system and wish to install it on another machine.

 

Lost Windows Key

Hi Saravanan,

I would suggest you to follow the steps below and check if it helps.

To start Product Activation:

• Go to Start, then select Settings, choose
  Update & security, and then select Activation.
• If your device is not activated, the Activate by phone option will be available.

Hope this information is helpful.

 

Windows 10 fails to update


When you finish testing the Avast suggestion, make sure that you restart your machine.

Then if the issue persists, please return to the trouble shooting list in post# 89

I think there are three steps that remain; the WU troubleshooter, reset WU components, and manual WU reset.