Prevent changing lock screen and logon image

Prevents users from changing the background image shown when the machine is locked or when on the logon screen.

By default, users can change the background image shown when the machine is locked or displaying the logon screen.

If you enable this setting, the user will not be able to change their lock screen and logon image, and they will instead see the default image.

Supported on: At least Windows Server 2012, Windows 8 or Windows RT

Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Microsoft\Windows\Personalization
Value NameNoChangingLockScreen
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

controlpaneldisplay.admx

Administrative Templates (Computers)

Administrative Templates (Users)