Windows 10: Windows won't activate after a hardware change with digital licence linked to account

I recently made a hardware change to my PC, after which Windows says no product key was found on my device Error code: 0xC004F213. Before I changed my hardware I ensured my digital licence was linked to my Microsoft account, troubleshooting doesn't provide the option to say I changed my hardware. Any help would be appreciated!

:)

 

Is Digital activation tied to a microsoft account as well as hardware?

It's optional. If you only ever signed in with a local account then it will just say 'activated with a digital licence' and it will just be tied to your hardware, but you can link the digital licence to your Microsoft account. In fact, this is recommended practice if you intend to upgrade the motherboard and run the activation troubleshooter afterwards if it doesn't activate. See these tutorials...

Link Microsoft Account to Windows 10 Digital License

Use Activation Troubleshooter in Windows 10

 

Licence not linked to Microsoft Account

I got my Mum a new PC to replace her current one as it's been having some hardware issues. I changed her from a local account login to using her outlook.com account and that's fine but it doesn't seem to have linked her licence with her MS account, as when I login with her outlook.com account on the new PC it's not activated. Selecting "Troubleshoot" returns "We weren't able to activate Windows on this devices" and clicking "I recently changed hardware on this device" returns "We can’t find any devices linked to your Microsoft account that can be used to reactivate the device that you’re using at the moment. Make sure that you’re signed in with the same Microsoft account that you linked to the Windows 10 digital licence on this device, or try again later. "

Her old PC was upgraded from Windows 8 to Windows 10 and it says "Windows is activated with a digital licence linked to your Microsoft Account". At https://account.microsoft.com it shows two devices, her old PC with Windows 10 Pro v1903 and her new one with Windows 10 Pro v1909 and neither say activated but maybe it's not meant to say that there?

So what do I need to do to get Windows on her new PC activated?

 

Linking digital licences to MS Account.

You are missing the point - I have two valid digital licences - one for home, and one for pro (retail originals as well) on same PC as dual boot, but it seems you can only link the last one to your MS account i.e. each time you link one, it removes the previous link.

So if I had a mobo failure, I would only be able to reactivate one of the licences as far as I can tell.