Windows XP:
- Go to Control Panel and find Network Connections
- Click on the Support tab
- The MAC addres will be listed under “Physical Address” in the resulting list.
Windows 7+:
- Go to Network and Sharing Center in the Control Panel, and click on “Change adapter settings” on the left pane
- Find the network adapter you want the address for, and double click the adapter.
- Click on the “Details…” button
- The MAC addres will be listed under “Physical Address” in the resulting list.