OK so, what am I doing wrong? I have Windows 10 Professional, and after I changed the motherboard it says my Windows is not activated. Troubleshooting does nothing, of course. When I log in to my M$ account I see 2 devices with the same name, Desktop-something, one with old hardware and one with new. I tried removing both, now the old one showed up again. BTW I didn't do a clean install, I just swapped the hardware. Is there any way to fix this or should I just buy another key?