How to Change Mac Address of Computer in Windows OS

By | June 7, 2014
mac addreess change in Windows


The MAC address (Media Access Control address) is a unique identifier which is used to identify your computer in a network.  Actually the MAC addresses are most often assigned by the manufacturer of a network interface controller (NIC)  which are stored in its hardware, such as the card’s read-only memory or some other firmware mechanism. There are many ways to Change the Mac Address of the Computer.

Here we bring several methods, which are used for Change Mac Address of Computer in Windows operating system.

Method 1 : By the help of Device Manager

  • Step1 : Open the Device Manager-  You can  directly access the Device Manager from the Control Panel, which will be located in the System and Security section if you are using Category View in your system.
  • Step2 : Now Expand the Network Adapters section-In your Device Manager, you will see a list of all of the hardware installed, which are available in your computer. These are divided into categories.  You have to Expand the Network Adapters section to see all of your installed network adapters.
  • Step3 : Right-click on your adapter- Now you have to Select Properties from the menu to open the network adapter’s Properties window.
  • Step4 : Click  on the Advanced tab –Now found the “Network Address” or “Locally Administered Address” entry. Highlight it and you will see a “Value” field on the right. Now Click  in the radio button to enable the “Value” field.
    If you can’t find either of these entries, you will need to use one of the other methods in this article.
  • Step5 :  Now Enter the new MAC address. The MAC addresses always will be a 12-digit values, and should be entered without any dashes or colons. For example, if you want to make the MAC address “9A:1B:4C:3D:8E:5F“, you would enter the address in this manner “9A1B4C3D8E5F “.
  • Step6 : Now Reboot your computer to enable the changes. You can also disable and re-enable your adapter within Windows for the change to become effective without rebooting. Just sliding the Wi-Fi’s On/Off switch like the slider found on your laptop. But the reboot is significant.
  • Check that the changesNow you can the Mac Address is changed or not after the reboot for this go to the ->cmd and type->ipconfig/all

Method 2 : With the Help of  Registry Editor

  •  Step1 : Now Find your network adapter’s ID information- This will be found in the Windows Registry. You can open the Command Prompt by typing “cmd” into the Run box (Windows key + R)
    • Type ipconfig /all and press Enter. Note the Description and Physical Address of the active network device. Ignore devices that aren’t active (Media Disconnected).
    • Type net config rdr and then press Enter.  Then Note the GUID, which is displayed between the “{}” brackets next to the Physical Address you recorded earlier.

registry open

  • Step2 : Now Open the Registry Editor- You can start the Registry Editor by opening the Run dialog box (Windows key + R) and typing “regedit“. This will open the Registry Editor, which will allow you to change the settings for your network card.
    • Making incorrect changes to the registry can cause your system to malfunction.

step 2

  • Step3 :Now Navigate to the registry key – NowGo to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}. Expand it by clicking the arrow.

methodstep 3

 

  • Step4 : Now Find your adapter-There will be several folders which are  labeled “0000“, “0001“, etc. Now you have to open each of these and compare the DriverDesc field to the Description you noted in the first step. To be completely sure, check the NetCfgInstanceID field and match it with the GUID from the first step.

step for 4 mac change



  • Step5 :Right-click on the folder that matches your device. For example, if the “0001” folder which matches to  your device, right-click on the folder. Select New -> String Value. Name the new value “NetworkAddress“.

step 5 for mac change

  • Step6 : Double-click the new NetworkAddress entry. In the “Value data” field, enter your new MAC address. The MAC addresses are 12-digit values, and should be entered without any dashes or colons. For example, if you want to make the MAC address “9A:1B:4C:3D:6E:5F”, you would enter “9A1B4C3D6E5F”.
  • Step7 :Ensure that the MAC address is formatted properly. Some adapters (especially WI-Fi cards) are unforgiving of MAC address changes if the first octet’s 2nd half isn’t a 2,6, A, E or begins with a zero. This requirement has been observed as far back as Windows XP and is formatted as: D2XXXXXXXXXX.

asdstep 7

  • D6XXXXXXXXXX

step 8 to mac address change



  • DAXXXXXXXXXX

Step 9to mac address change

  • DEXXXXXXXXXX

step 10 mac address change

  • Step8 :Reboot your computer to enable the changes. You can also disable and re-enable your adapter within Windows for the change to become effective without rebooting. Just sliding the Wi-Fi’s On/Off switch like the slider found on ThinkPad’s and VaiO’s won’t satisfactorily disable/re-enable the card.
  • Step9 :Check that the changes took effect. Once you’ve rebooted the computer, open the Command Prompt and enter ipconfig /all and note the Physical Address of your adapter. It should be your new MAC address

 Method 3 : By the use SMAC Software

  • Step 1 :Download the SMAC program – The SMAC is a paid tool with a free demo which will allow you to quickly change your MAC address. It is compatible with Microsoft operating system such as – Windows XP, Vista, and 7. Be sure to only download from trusted sources.
    • Install the software after downloading it. Most users will be fine with the default settings.
  • Step 2 :Select your adapter – When you open SMAC, you will see a list of all of your installed network devices. Now Select the adapter, which you want to change the address for.
  • Step 3 : Enter your new address –In the fields under “New Spoofed MAC Address“, enter in the new MAC address.
  • Step 4 : Ensure that the MAC address is formatted properly- Some adapters (especially Wi-Fi cards) are unforgiving of MAC addresses changes if the first octet’s 2nd half isn’t a 2,6,A,E or begins with a zero. This requirement has been observed as far back as Windows XP and is formatted as: D2XXXXXXXXXX

asdstep 7

  • D6XXXXXXXXXX

step 8 to mac address change

  • DAXXXXXXXXXX

Step 9to mac address change



  • DEXXXXXXXXXX

step 10 mac address change

  • Step 5 : Click Options – Now you have to Select the “Automatically Restart Adapter” option from the menu. It should have a check mark next to it.
  • Step 6 : Click the “Update MAC” button – Your network connection will be temporarily disabled as your MAC address is updated. Verify that the address changed in the grid listing your devices