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Networking Tool: How to Change the MAC Address of Any Network Interface Card (NIC)

by Shivaranjan on April 14, 2009

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Technitium MAC Address Changer is a free tool that allows you change the MAC addresses (Media Access Control) of any network adapter that includes Ethernet, WLAN, PAN and etc. The MAC addresses are hard coded into your network card or network interface card (NIC) by the manufacturer but this tool allows you to change it without touching your network card or network interface card (NIC)

How does Technitium MAC Address Changer work?

This software just writes a value into the windows registry. When the Network Adapter Device is enabled, windows searches for the registry value ‘NetworkAddress’ in the key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1- 08002bE10318}\[ID of NIC e.g. 0001]. If a value is present, windows will use it as MAC address, if not, windows will use the hard coded manufacturer provided MAC address. Simple? Some Network Adapter drivers have this facility built-in. It can be found in the Advance settings tab in the Network Adapter’s Device properties in Windows Device Manager.

As we can see that this tool does not touch the network interface card and only changes the MAC address in Windows registry hence it is absolutely safe to use.

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Features of Technitium MAC Address Changer

  • Allows you to remove all registry entries corresponding to Network Adapter that is no longer physically installed on the system.
  • Identifies the preset applied to currently selected Network Interface Card (NIC) automatically making it easy to identify settings.
  • Changes MAC address of Network Interface Card (NIC) including Wireless LAN Cards, irrespective of its manufacturer or its drivers.
  • Allows you to select random MAC address from the list of manufacturers by just clicking a button.
  • Restarts your NIC automatically to apply MAC address changes instantaneously.
  • Allows you to create Configuration Presets, which saves all your NIC settings and makes it very simple to switch between many settings in just a click and hence saves lot of time.
  • Allows you to Import or Export Configuration Presets to or from another file, which saves lot of time spent in reconfiguration.
  • Allows you to load any Configuration Presets when tool starts by just double clicking on any Configuration Preset File. (*.cpf file extension)
  • Allows you to export a detailed text report for all the network connections.
  • Displays all information you would ever need to know about your NIC in one view like Device Name, Configuration ID, Hardware ID, Connection Status, Link Speed, DHCP details, TCP/IP details etc.
  • Displays total bytes sent and received through the NIC.
  • Displays current data transfer speed per second.
  • Allows you to configure IP Address, Gateway and DNS Server for your NIC quickly and instantaneously.
  • Allows you to enable/disable DHCP instantaneously.
  • Allows you to Release/Renew DHCP IP address instantaneously.
  • Displays DHCP lease obtained and lease expires time.
  • Allows you to configure Interface Metric instantaneously.
  • Quick keyboard shortcuts for most operations.

We tested this tool in Windows XP and Windows Vista and found it working without issues. This is one of the must have tools that you should have, if you want to change your MAC address.

Download Technitium MAC Address Changer (Download.com Link) Home Page

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