Trying to find out the MAC-address of my ethernet adapter, I tried ipconfig and all the properties of the adpater in device manager but could not find it. Then I found out that ipconfig displays it, if the /all switch is added:
This will list all your network devices. Their MAC addresses are listed as the “Physical address”.
To run this, you need a command window. You can get it like this:
[Windows-Key] + [r]
Type in “cmd” and hit enter.
Then you get a black window with white text where you enter “ipconfig /all”.
(The windows-key is the one between the left CTRL and ALT. If you don’t have one (I heard this still exists ;-)), click Start/Run in Win XP or click Start, type “cmd” and then enter in Win7).