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Symantec CMC SmcGui has encountered a problem and needs to close. We are sorry for the inconvenience.

Created: 16 Apr 2011 • Updated: 18 Apr 2011 | 8 comments

I seem to have a problem with a game, everytime I start it up, the program closes and this box comes up saying "Symantec CMC SmcGui has encountered a problem and needs to close. We are sorry for the inconvenience." Pressing Debug doesn't come in use as it only closes the anti-virus system and still occurs. I have Windows XP and Symantec Endpoint protection. This problem did not happen until a sudden time where it started to happen. I've been looking through the internet for a solution to this, but I can't find any, so I was hoping that somebody could help me here? Thanks.

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Thomas K's picture

What version of SEP 11 are you running? There was an issue like yours that was solved way back in MR2.

This is the wrong forum, I am moving this thread to the Endpoint Protection forum for you.


Mithun Sanghavi's picture


What version of SEP is installed?

Please check if you have the latest version of SEP. The Latest version is 11.0.6300

You can download it from using your serial number.

We recommend you to upgrade the Symantec Endpoint Protection Manager and all clients to Latest version.

If you are carrying old version than 11.0.6005, there would be 2 upgrades you will have to go through. Please check the steps below:

1) From Symantec Endpoint Protection older version  to Symantec Endpoint Protection 11.0.6005 (RU6a)

2) From Symantec Endpoint Protection 11.0.6005 (RU6a) to Symantec Endpoint Protection 11.0.6300 (RU6 MP3)

Reason:---> check the Release Notes below:

Release notes for Symantec Endpoint Protection 11.0.x and Symantec Network Access Control 11.0.x


Mithun Sanghavi
Associate Security Architect


Don't forget to mark your thread as 'SOLVED' with the answer that best helped you.

Simpson Homer's picture

Run Windows Installer CleanUp Utility to remove SEP. (

Simpson Homer's picture


The Windows clean up installer tool, change the ext to .exe

[edited by admin]  Please paste a link to the 3rd party as opposed to providing a file attachment.  This particular file is no longer supported by MS. [end edit]