Users running both Symantec Endpoint Protection and Malwarebytes 3 with CU139 or CU141 will see issues with real-time protection modules not starting, not being able to change Malwarebytes configuration options, and their computer running slower than normal. Disabling Self-Protection will allow both products to run side by side without any other issues.
This issue is fixed as of CU160. Please start by verifying you are on the latest version of Malwarebytes 3.
Due to the issues happening, users will need to boot into Safe Mode to disable Self-Protection. Please follow the steps below: