Windows 10: Upgrade my computer hardware. Windows 10 then gives error about reactivation

When trying to activate windows 10 with key extracted from when it was running with old hardware, it fails. Trying with with the windows 7 key i originally upgraded from also fails.How can i activate my copy of windows 10 ?--Paul

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windows 10 reactivation after hardware change

I just changed motherboards, and When I follow the the steps listed in the "reactivate windows 10 after hardware change" support page, it gives me the message "unable to activate windows" message after I sign in and identify my device,
with no error code, just a subheader that says "can't activate windows 10 on this device, try again later."

 

Reactivating Windows 10 after hardware upgrade

I recently did some major hardware upgrades on my computer, including replacing the motherboard. A week before I did this I linked my digital license to my microsoft account so I could reactivate windows after the upgrade, following the steps on this page:
Reactivating Windows after a hardware change - Microsoft Support

After following the second set of steps I'm given this error:

"We can’t find any devices linked to your Microsoft account that can be used for reactivating the device you’re using right now. Make sure you’re signed in with the same Microsoft account you linked to the Windows 10 digital license on this device or try
again later."

Clicking "See other devices" shows me nothing except:

"We can’t reactivate Windows from these devices.



If you're not seeing your current device, make sure you're signed in with the same Microsoft account you linked to the Windows 10 digital license on this device. "

I'm signed in on this computer as an admin with my Microsoft account. Is there anything else I can try to reactivate Windows 10?

 

Windows 10 reactivation on hardware changes

Hi Florea,

It is possible that Windows won't be able to identify your computer correctly that is why the operating system is not activated. To address your issue, we suggest that you follow the steps in this
article on how to reactivate your Windows 10 after a hardware change.

Let us know if you need further assistance.