Windows 10: i Can't reactivate windows after switching my motherboard and everything expect my hard drive

as shown in the picture, that's one of things shown

:)

 

Hard drive/ OS issue

a guy suggested :

• shutdown
• unhooked HDD
• restarted
• yay !!
• reconnected HDD
• restarted
• yay !!

also , try method 3
How do I unlock the drive where Windows 10 is installed?

 

Reactivating retail Windows 10 pro after upgrading motherboard

I'm about to upgrade my motherboard and I already have my Windows 10 license linked to my Microsoft Account. Can I erase the hard drive, upgrade the motherboard, clean install Windows 10 and then run troubleshooter to reactivate with the same Microsoft account? What would happen if I use the Remove PC option in the list of devices in my Microsoft Account? Is there a way to do a remote wipe from the Microsoft account with Find My Device?

 

Motherboard change unable to reactivate Windows 10 Pro -


I have searched this topic and everything seems to be almost a year old. This is a homebuilt machine circa 2015. It started with an ASUS FM2+ motherboard with an AMD A5600K processor. It was Windows 7 Pro, upgraded to Windows 8.1 Pro then to Windows 10 Pro.
Saturday the motherboard died. An exact replacement could not be located so a Gigabyte card was installed. No changes to the hard drives. Booted the machine and Windows automatically started and then did a "revert" then installed the latest updates. C Drive was in the red so I deleted all of the old install files using Windows Clean-up. Went to reactivate, checked the significant hardware change and entered my MS account information - The computer (none of my computers) were listed and now it is telling me that I have to spend $200 to buy a copy of Windows 10 Pro.
Have not yet called Customer Support as the computer is at home and I work during the day -
I do have a disk image or two that may be a year old -

Suggestions - should I just shell out the $200 and move on

TIA