When clients with Symantec Endpoint Protection Small Business Edition (SEP SBE) install are attempting to shut down, the shut down process hangs and requires a hard reboot in order to stop the hang.
This issue is due to a conflict between SEP SBE and Malwarebytes Endpoint Security.
Users have reported that adding scan exclusions recommended by Malwarebytes has resolved the issue. To resolve this issue, add exclusions to SEP SBE in accordance with the following Malwarebytes best practices documentation:
What exclusions should I add for my antivirus when using Malwarebytes Endpoint Security?
For instructions on how to create scan exceptions in SEP SBE, refer to the following article: https://support.symantec.com/en_US/article.TECH214005.html