How can I change my media access control (MAC) address under Windows NT 4.0?

John Savill

November 18, 2001

1 Min Read
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A. Each network adapter card has a MAC address, which machines on local subnets use to talk to each other. MAC addresses are usually burned into the adapters during the manufacturing process. To overwrite a network adapter card's default MAC address, perform the following steps:

  1. Start the registry editor (e.g., regedit.exe).

  2. Navigate to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesParameters.

  3. From the Edit menu, select New - String Value.

  4. Type a name of NetworkAddress, and press Enter.

  5. Double-click the new value, and enter the adapter's new MAC value.

  6. Click OK.

  7. Close the registry editor.

  8. Reboot the machine.

About the Author

John Savill

John Savill

https://savilltech.net

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