try to manually start the service, after that follow this
- Stop "Symantec Endpoint Protection Manager service"
- Navigate to control Panel
- Open Java console options
- Click on Java Tab
- Open "View" option ( JAVA Runtime Environment Settings -> JAVA Runtime Versions)
- Disable / uncheck Support for JAVA Platform 1.6
- Click on "OK"
- Restart "Symantec Endpoint Protection Manager service"