1 How to Change MAC Address
Select appropriate network connections adapter and click on Properties
2 How to Change MAC Address
Click Configure button to go through the next step.
2.1 How to Change MAC Address
Under “Advanced” tab you should see an item called “Network Address” click on it. (See figure below as an example)
On the right side, under “Value”, type in the New MAC address you want to assign to your NIC. 
3 How to Change MAC Address
To verify the MAC ID, simply go to command prompt and enter the command ipconfig /all.

Win7 MAC Address Changer

Win7 MAC Address changer is a freeware windows program which can change the MAC (Media Access Control) Address of many wired and wireless network adapters. Win7 MAC Address Changer is capable of spoofing MAC Address in all major windows systems including Windows XP, Windows Vista and Windows 7 (both 32bitand 64bit systems).
mac+address+changer How to Change MAC Address
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Technitium MAC Address Changer

Technitium MAC Address Changer allows you to change (spoof) Media Access Control (MAC) Address of your Network Interface Card (NIC) irrespective to your NIC manufacturer or its driver. It has a very simple user interface and provides ample information regarding each NIC in the machine.
tectium How to Change MAC Address
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SMAChttp://www.klcconsulting.net/smac/
Change MAC Addresshttp://lizardsystems.com/change-mac-address