Hardware change Windows

[Amazingasian]

So a while back I updated to Windows 10 from Windows 7 home premium.  Everything worked fine but I never used Magic Jellybean or a keyfinder to find my new Windows 10 key.  2 weeks ago, my motherboard crapped itself and I had to RMA it.  MSI repaired it and sent back the same motherboard so when I booted it up a couple days ago, everything ran fine.  Now, today, when I try to turn it on, It goes straight to Windows Boot Manager and tells me that I have to use a Windows installation disc to run a repair due to a hardware change.  So do I make an iso for Windows 7 or 10 and will I need a key to repair it?

[leonard_sun]

If you want to do the re-authentication online then YES you'll need a key. Other than that, you can call Customer Support to transfer over the digital entitlement since the computer sees a change in your mobo.

[Amazingasian]

Just now, leonard_sun said:

If you want to do the re-authentication online then YES you'll need a key. Other than that, you can call Customer Support to transfer over the digital entitlement since the computer sees a change in your mobo.

Okay thanks.  Gimme a couple hours while I try to deal with Microsoft support.