Click "Start" ---> Run ---> type "cmd" , command prompt will be open and type following commands
1) C:\Users\Administrator> getmac .by this command you can get your system MAC address
Example : 00-1E-EC-5A-1B-2D
2) C:\Users\Administrator> getmac /v /fo list
This command is used to find , howmany LAN card , WIFI card and that addresses
Connection Name: Wireless Network Connection
Network Adapter: Broadcom 802.11g Network Adapter
Physical Address: 00-21-00-60-19-7B
Transport Name: Media disconnected
Connection Name: Local Area Connection
Network Adapter: Realtek RTL8102E/RTL8103E Family PCI-E Fast Ethernet N
6.20)
Physical Address: 00-1E-EC-F3-46-5A
Transport Name: \Device\Tcpip_{DE06C86D-5FAE-4561-BBB0-67F2175B4A5A}
Connection Name: Bluetooth Network Connection
Network Adapter: Bluetooth Device (Personal Area Network)
Physical Address: 00-21-86-D6-8B-68
Transport Name: Media disconnected