So I recently changed the motherboard on my PC and now it says that my Windows is not activated. "Thats fine" I thought and I went into the Settings to reactivate Windows (I am signed into my MS account on the PC). On the page it says that I need to buy a new copy of Windows in the store or change the product key (I don't have a Windows product key because I upgraded to Windows 10 when it was free). I decided to click on the link in the bottom to open up the Windows activation troubleshooter and it just says: "Troubleshooting has completed. We weren't able to activate Windows on this device. You can activate the device by going to the Store and purchasing a genuine copy of Windows.". At the bottom there was a link that says "I changed my hardware recently" so I clicked on it. It opened up a list of devices that are connected to my Microsoft account (total of 2 devices). One laptop (my school laptop) and one PC device. I selected the PC device and clicked "Activate". It just said "We can't reactivate Windows on this device. Try again later"! I have changed motherboards on this PC before and have had no issue with this whatsoever. What is the problem?
Worth noting that if I log in to my Microsoft account at Microsoft.com and list my devices it lists 3 devices instead of 2. Two PC's and a laptop. The two PC devices have the exact same name but one of them seems to have a more recent version of Windows (I updated my Windows yesterday, the very same day I installed the new motherboard).
EDIT: I would have contacted Microsoft to resolve this issue but its a weekend and their support is closed.
Worth noting that if I log in to my Microsoft account at Microsoft.com and list my devices it lists 3 devices instead of 2. Two PC's and a laptop. The two PC devices have the exact same name but one of them seems to have a more recent version of Windows (I updated my Windows yesterday, the very same day I installed the new motherboard).
EDIT: I would have contacted Microsoft to resolve this issue but its a weekend and their support is closed.