Every network adapter has a unique media access control (MAC) address. It is usually represented as six two digit hex numbers, separated by colons. Let’s say your Lenovo laptop has a wifi connection and you are running windows 10. If you go to your adapter settings, you are looking for that address. Sometimes it is referred to as a hardware or physical address.
So, of the many ways to find it, press the windows key, and in the box enter “network status”, then click on “view hardware and connection properties”. Look for the physical address, copy it, and paste it into the Admin|More Settings|Mac Clone box.