Windows 10: Windows 11 Pro Product Key Activation Error

I've had my Computer for just shy of a Year now with not a single problem. But then out of the blue I had the Infamous Windows Watermark pop up saying I needed to activate Windows. It has now been roughly a month of me doing everything online apart from buying a new Key as I do not want to pay £220 for a Key I already have.The Error code I've been getting is Error Code 0xC004C003.I have made multiple Microsoft Tickets with no response at all from anyone at Microsoft Support and all the tickets have been marked as resolved.

:)

 

Windows 11 home to Windows 11 pro upgrade by product key - not active

HI,

I bought a product key for windows 11 pro, I did install it however i get error code an not able to activate -> 0x80072EE7.

Is there a way to resolve the issue? Tried to do the phone activation but it doesnt help. Windows suggest installing windows 11 home again (which I dont want since I bought windows 11 pro).

 

Windows 11 Pro activation key

Thanks for reaching out! I'm an Independent Advisor and a Microsoft user like you.

Have you tried logging in with the account linked to the digital license on your device? I've provided a few steps you can try including some more you can follow:

1. Link your Microsoft account: Ensure that your Microsoft account is linked to the digital license on your device. Go to Settings > Accounts > Your info and check if your Microsoft account is listed there. If not, click "Sign in with a Microsoft account instead" to link your account.
   
2. Run the Activation Troubleshooter: Go to Settings > System > Activation, and click the "Troubleshoot" button. This will launch the Activation Troubleshooter, which can help reactivate Windows after a hardware change if your Microsoft account is linked correctly.
   
3. Enter your existing product key: If the Troubleshooter doesn't resolve the issue, try entering your existing Windows 11 Pro product key. Go to Settings > System > Activation, and click "Change product key." Enter the key you used previously to upgrade to Windows 11 Pro.
   

If you are still having issues after trying these steps, please let me know. I'll be happy to help.

 

Windows 8.1 pro + WMC key activation

So it will be fine installing 8.1 pro with a KMS key, then switch to my 8 pro key and it will activate ok?

Maybe a daft question but why can't you just install 8.1 pro with the 8 pro key, or is it different keys for 8 and 8.1? seems silly when 8.1 is a free update anyway.