This is the detection for a potentially unwanted modification (PUM) on the registry that prevents the user from accessing the standard Windows registry tools. For example, when users are trying to run regedit, they will get the error message, “Registry editing has been disabled by your administrator.”
The following registry value data are modified:
Malwarebytes can modify this registry value data back to its Windows default setting without user interaction.
Also, we advise users to do a full system scan as PUM.Optional.DisableRegistryTools could have been added to the system by malware or a PUP.