To find MAC address or Physical address in Windows 7, follow these steps:
Click Start, type “cmd” (without the quotation marks); right click over the cmd icon and link that appears top of the start menu search list > click “Run as administrator” :

Command prompt will open. In the command prompt, type ipconfig /all and press enter:
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Scroll down to the listed network adapter that you want to see the MAC address of. You will see the MAC address (Physical Address) listed on the right side just under the network adapter’s description:

