How can I find a MAC address of LAN device from old computer hard drive

My old computers motherboard died. And I bought a new computer and kept the old HDD. But my internet connection is bound to the old computer LAN MAC address. I have tried to find it in the old drive windows register, but there is not defined as https://9apps.cam/. Is in windows an option like in Linux, that you can search the logsin the HDD and find the Mac addresses used in the past? Thanks in advance for any advice.