1) Stop the Symantec Endpoint Protection Manager and Symantec Embedded Database Service.
2) Rename / Delete the current log (usually in C:\Program Files\Symantec\Symantec Endpoint Protection Manager
3) Click Start, click on Run and Type “CMD” then click OK
4) In the Command Prompt type: “CD C:\Program Files\Symantec\Symantec Endpoint Protection Manager\ASA\win32\” and press Enter this will change directories to the folder containing dbsrv11.exe.
5) To force the recreation of sem5.log. Type: “dbsrv11 -f “C:\Program Files\Symantec\Symantec Endpoint Protection Manager\db\sem5.db” and press Enter
6) Click Start, click on Run and Type “services.msc” then click OK and start the Symantec Embedded Database Service
7) Start the Symantec Endpoint Protection Manager service.