Chosen Solution
Okay so my Windows 10 Key reverted..? No idea what happened here. I bought a laptop, it had Windows 10 Home on it.. so I bought a key to upgrade to Windows 10 Pro. The laptop’s keyboard borked over, so I formatted and returned the laptop to the shop and got a new one.. My new laptop is Win10 Home as prior, I tried to use my 10 Pro key.. but it says it’s in use.. So I call Microsoft.. and they tell me that my Key is Windows 8 Pro.. NOT 10.. what in the world happened? :f
If you already used the Windows 10 key to upgrade. Then you changed to a different laptop, you need to get a new key. Digital entitlement is unfortunately non transferrable and most keys are locked to a single machine. Since you changed machines you cannot use the existing key on the new machine. About the key being for Windows 8, sounds like the Microsoft representative made a mistake, but either way, if the key was used, you need a new one.
