Hello,
How can we prevent the SEP 12.1 pop-up messages that appear from the system tray? Thanks, Doug
To Disable those pop-up, you can disable the Notifications from the SEPM.
The Article below is for the same issue.
Note: The article applies for the SEP version 11, however steps remains almost the same.
http://www.symantec.com/docs/TECH93028