So weird, I changed every component but my cpu and windows didn't blink. Bought a used identical mobo while mine is being RMA'd and THIS time win 10 complained. I got a chat open and they basically...

I know this thread is a bit old but I want to add important info.
First if you upgraded, as mentioned, your product key is the generic one. Don't bother with Belarc or any other key finder they will...

Just for reference, I did an OEM win 7 upgrade to 10. Then my msi z77a-g46 mobo failed. RMA, installed, booted just fine.

And then THAT mobo failed, of course it can't be bought for a reasonable...