Windows 10: Windows 10 Pro Deactivated Suddenly with no hardware changes error code 0xC0EA000A

I purchased Windows 10 Pro on 26 May 2020 from Microsoft with digital download. Installed at that time and everything has worked as expected for Windows. Over this past weekend 24 December 2023 Windows has deactivated itself with error code 0xC0EA000A - indicating that hardware on the device has changed which it has not at all since Windows 10 was installed. I do not have the product key that I can find at this time, and the only option it is giving me is to purchase a new product key or purchase Windows 11 - both of which are nonsense. I noted in another thread that a respondent had as

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Windows suddenly deactivated, claims Pro key is Home key

Hi

After using my Windows 10 Pro install for about 18 month, my copy of Windows has suddenly deactivated, error code 0xC004F034. The exact error when using the troubleshoot feature is that the key is for 10 Home, not 10 Pro. However, this key is definitely
for a Pro installation, and it as mentioned, was working fine for at least 18 month before it has now suddenly deactivated.

Any one have any ideas how to resolve this?

Cheers!

 

Windows 10 Pro for Workstations deactivated after system restore with error code: 0xC0EA000A



Hello,

Yesterday my PC was updated via. Microsoft Update feature with new firmware for my ASUS BIOS.

After that my Windows won't boot so I had to perform system reset and restore after noticing that OS reset failed.

When I get my Windows up and working again I found another problem - Windows is NOT activated with error code 0xC0EA000A.

The thing is - no hardware has been changed in laptop - nothing at all I had to restore OS because update fail.

Windows 10 Pro for Workstations has been purchased at Windows store and key is assigned on my online account.

Any help please? I am not going to buy it again as it's bit costly.

 

Windows 10 Pro, activated suddenly deactivated

Hello, I have an issue where my Windows 10 Pro suddenly got deactivated yesterday night. Upgraded to Pro on 06 October 2019 until yesterday was fine, but at the night I noticed on the left bottom screen there is watermark about "Activate Windows, Go to Settings
to activate Windows"

I've tried troubleshoot and what I got is this





And I still have the key, but also I got an error message like this :





Then trying to type this on CMD : slmgr.vbs /dlv , the result is the same





Again, run Slui.exe --Error Code-- , no works

So, any suggestion? Also, I've searched some info IF you suddenly get Windows deactivated probably Microsoft has an error with the Server causing the activated Windows to become deactivated.

Thank you,