How to Find MAC Address in Windows OS

In order to find MAC address of a device on your LAN in the same Subnet is very simple in Windows network environment. You would, however, need at least a known IP address of a PC or device in your network.

Locating the MAC address of a networked computer from Windows:

1. Click Start -> Run, type cmd and click Ok
2. Type ping xxx.xxx.xxx.xxx, replacing xxx.xxx.xxx.xxx with the IP address of the computer who's MAC address you want to retrieve
3. After the ping response has finished, type arp -a
4. Under Internet Address, locate the IP address you just pinged. In the same line, the corresponding MAC address is listed under Physical Address