Windows 10: Windows10 not re-activating on new Hardware

Hi, I'm having trouble re-activating my Windows 10 version after changing hardware and installing the OS to a new drive. How I can get my digital license key to activate?Here's the sequence of events: 1. had originally purchased windows 7 in 2015 and did the free upgrade to windows10 when that was originally offered. Afaik, that should have assigned a digital license key? this microsoft community answer2. today, I used the Media Creation Tool to create a boot drive based on my at that time still activated/valid Windows 10 version on the old hardware3. swapped out the hardware for my new sy

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Activation on new hardware

In the activation troubleshooter, when it detects no problems or gets to the end screen, click "I changed hardware on my PC recently", and select the license that corresponds to your PC. You might need to restart your PC.

 

Activation on new hardware

I had already completed the troubleshooting steps you have suggested and the process simply ends up with 'Unable to activate windows'. Error message persists.

 

Activation troubles after hardware chnage

Here's what happened:

• Linked my Windows 10 Pro Licence to my Microsoft account.
• Switched out to a new motherboard, new install linked to my Microsoft account.
• Activation has failed, (Error Code: 0xC004C003) when I try to troubleshoot:
  • Press I recently changed hardware on this device
  • Select the old computer in my Microsoft account
  • Says unable to reactivate windows - try again later - and links to here:
  • Reactivating Windows after a hardware change - Microsoft Support
  • I've been through it nothing is relevant or helps
• Have been trying for 3 days now - still not activated.

Anyone got any ideas or suggestions on what I can do?

Thanks