While doing registration on typing getMac command on my Windows 10 laptop I got 2 mac address

On typing getMac command on my Windows 10 laptop I got 2 mac address. Which one to enter while doing registrationGetMac

You can use any one mac address for registration.

The commands prompt displays the MAC address of all the NICs connected with your system.
The reason you’re getting two MAC address is that you have WiFi NIC and Ethernet NIC.

For the licence to get validte, any of the MAC address will be work fine.