PUM.Optional.DisableMCProperties is Malwarebytes’ detection name for a potentially unwanted modification (PUM) in the Windows registry that prevents the user from accessing System Properties via My Computer as well as via Control Panel.
The following registry value data are modified:
Malwarebytes can set this value to 0, which restores the access without further user interaction.
Also, we advise users to do a full system scan as PUM.Optional.DisableMCProperties could have been added to the system by malware or PUP.
When a Potentially Unwanted Modification (PUM) is detected on your computer, Malwarebytes for Windows does not know whether it was authorized. Optimization software, malware, and Potentially Unwanted Programs (PUPs) are known to make these types of changes, hence they are regarded as potentially unwanted by design.
To have Malwarebytes for Windows ignore a PUM, you must add the PUM to the Allow list. Here’s how to do it.