The more user-friendly way to change your MAC address in Windows is via the Network Adapter Properties. You probably want to try this first, leaving the Registry method as a last resort. When you're ready, give it a try:

  1. Open the Network Connections window and double-click the desired network adapter.
  2. On the Network Connection Status window, click the Properties button.
  3. On the Network Connection Properties window, click the Configure button.
  4. On the Network Adapter Properties window, select the Advanced tab.
  5. Choose the Network Address or Locally Administered Address Property, select the Value radio button, and then enter the new MAC address. If using Windows 7, you must use a special format as we'll note in a moment.
  6. Click OK to save changes.

If you don't have success changing your MAC via the Network Adapter Properties, you might want to try using the Windows Registry. However, you should first copy down the original address before proceeding so you'll have it if you want to restore it. When you're ready, here's how to edit the Windows Registry setting:

  1. Open the Registry Editor by typing regedit into the Start Menu field or Run prompt.
    Browse to the following key: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{4D36E972-E325-11CE-BFC1-08002BE10318}
  2. You should see 4-digit sub-keys, such as 0000, 0001, 0002, 0003 and so on. Find the right network adapter by referencing the DriverDesc attribute of each sub-key.
  3. Once you find the desired adapter, see if it contains a NetworkAddress attribute. If not, create a new String (REG_SZ) and label the Value Name as NetworkAddress.
  4. To edit the NetworkAddress, double-click it and type the desired MAC address (without separators) in as the Value Data. If using Windows 7, use the special format discussed next.

For either method in Windows 7, the second character of the MAC address must be a 2, 6, A, or E, such as the following examples:


Now you should double-check you're using the new MAC address, using one of the methods we discussed in the beginning of the section.

참고 사이트 : 

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