If you forgot the original password, you can find it stored in the sem5.log file in the %installationdirectory%\db. In order to open this log file, you will need to:
1) Stop all services using it. Not an easy task because one of the Symantec services does not give you the ability to stop it. So disable all the Symantec Endpoint Security related services and reboot the server. After it comes up you should be able to open this log file.
Another beautiful hack for locating that lost password is:
1) Go to ODBC, enter the user name and password…etc.