Malwarebytes CU139/141 Compatibility Issue with Symantec Endpoint Protection

Document created by dcollins Employee on Jun 22, 2017Last modified by dcollins Employee on Jun 30, 2017
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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:

  1. Boot the computer into safe mode
  2. Open Malwarebytes 3
  3. Click Settings -> Protection
  4. Under Startup Options, turn OFF Enable Self-Protection Module
  5. Reboot the computer back into normal mode