Windows 10: Windows 10 Home to Pro activation problem

I recently purchased an upgrade from Windows 10 Home to Windows 10 Pro from the Microsoft Store.The update applied was to Windows 10 Enterprise, which 1. I obviously didn't want2. is not in any case available to retail customers from the Store3. has resulted in a Windows activation error 0xC004C003 as I clearly have a digital licence for Windows 10 Pro, but my machine is running Windows 10 Enterprise.I don't think this is a new problem, and I think the solution is trivial; see, for example, https://answers.microsoft.com/en-us/windows/forum/all/activation-error-0xc004c003-windows-10-h

:)

 

Windows 10 Activation Error: 0xC004F034

Hi Greg,

This error code is usually caused by a problem with the product key. For better assistance, we would like to clarify how you got the Windows 10 Pro? Is it supplied by a company?

As an initial troubleshooting step, we suggest that you run the Activation troubleshooter and try activating Windows 10 Pro again. To run the Activation troubleshooter, follow these steps:

• Click the Start button and select the Settings
  icon.
• Choose Update & Security from the list.
• Select Activation in the left pane of the window.
• Click Troubleshoot.

If your Windows 10 Pro is supplied by a company, we recommend that you get in touch with your organization's support for assistance with the activation.

We'll be waiting to your reply.

 

Windows 10 Activation (Insider)

How long did you wait for activation?
When I re-installed with a fresh install... it took a few hours to sync and activate.
However, it did, finally, activate.

 

Windows 10 Activation (Insider)

I bought Windows 7 Pro OEM key from G2Play.net for 12€ to upgrade to Windows 10 Pro - worked like a charm but be advised if you buy a OEM key you can not download the Win 7 iso from microsoft and have to get it elsewhere.