Windows 10 Enterprise subscription is not valid

Question

Recently i have one of our user's machine reverted itself from Windows 10 Enterprise to Pro

I have checked the requirements needed in order for Windows 10 Pro machine getting upgraded to Enterprise via M365 E3 license. I can verify that the machine is

1. AAD-Joined
2. Windows 10 1803
3. Valid M O365 E3 license assigned to the user

The current "error" i am getting is Windows 10 Pro activated with a digital license, Windows 10 Enterprise subscription is not valid.

screenshot of "error"

Not sure what else i need to check or do. Please help? Kind Regards

Answer 1

For me running the following command has solved this exact issue:

cscript.exe c:\windows\system32\slmgr.vbs /ipk AAAAA-BBBBB-CCCCC-DDDDD-EEEEE-FFFFF

As seen in: https://docs.microsoft.com/en-us/windows/deployment/windows-10-enterprise-subscription-activation