Wi-Fi MAC Randomization Enabler (Windows 10/11)

SYNOPSIS

Enable-WiFiMacRandomization-AllProfiles.ps1 is a Powershell 7 script for Windows 10/11 systems that ensures that hardware address (MAC) randomization is turned on for your wi-fi interfaces and that all existing Wi-Fi profiles have Hardware (MAC) address randomization enabled.

DESCRIPTION

If you've joined multiple Wi-Fi networks prior to turning on Random Hardware Addresses in the Windows settings, your old profiles will still be set to use the default MAC address, which is probably not what you want.

Your choices are to either:

1. remove all of the previous Wi-Fi networks, or
2. manually edit the properties of each network to turn on hardware address (MAC) randomization.

The script gives you an alternative: It will turn on hardware address (MAC) randomization for all existing Wi-Fi profiles, regardless of their current setting.

This script requires Administrator privileges, and AS ALWAYS, BACK UP THE PROFILE DIRECTORY BEFORE RUNNING.

Details:

In order for Hardware address (MAC) randomization to work, it will need to be turned on at the system level (RandomMacState in the registry or the "Use random hardware addresses" setting in the Settings GUI), and also for each wi-fi profile on your system (MacRandomization in each wi-fi profile's XML file).

If the system-level setting is not turned on, the script will offer you the option of turning it on for each wi-fi interface.

The script will then scan all Wi-Fi profile XML files under C:\ProgramData\Microsoft\Wlansvc\Profiles\Interfaces\ and ensure that each profile has MAC randomization turned on (that it contains a <MacRandomization> element with <enableRandomization> set to true and a randomly-generated <randomizationSeed> if not already set).

After processing, the script will offer to restart the WLAN AutoConfig service ('WlanSvc') to apply changes.

Scripts

• Enable-WiFiMacRandomization-AllProfiles.ps1 - The only script you need. It will do all of the functionality above.
• Enable-WifiMacRandomization-AllInterfaces.ps1 - A stand-alone script to turn on the system-level RandomMacState for all wi-fi interfaces.
• Get-WifiMacRandomization-AllInterfaces.ps1 - Shows the system-level RandomMacState setting for each wi-fi interface on your system.
• Get-WifiMacRandomization-AllProfiles.ps1 - Shows the MacRandomization state for each wi-fi profile on your system.