Summary: Easily find your MAC address with Windows PowerShell.
How can I use Windows PowerShell to find the MAC address on my computer?
Use the Getmac command-line reference.
-or-
Use WMI, for example:
Get-WmiObject win32_networkadapterconfiguration | select description, macaddress
Get-CimInstance win32_networkadapterconfiguration | select description, macaddress