: Manually stop the three main SEPM services (Manager, API Service, and Web Server) and any syslog services that might lock files. Step-by-Step Upgrade Process 1. Upgrade the Management Server (SEPM)
Phase 2: Upgrading the Symantec Endpoint Protection Manager (SEPM) symantec endpoint protection upgrade 14.2 to 14.3
Upgrade your LUA servers if you use them. : Manually stop the three main SEPM services
Verify that services such as Symantec Endpoint Protection Manager and Symantec Embedded Database are in a "Running" state under Windows Services. symantec endpoint protection upgrade 14.2 to 14.3
Save the recovery file (containing encryption keys and domain certificates) located in the Data\Inbound directory. Without this, you cannot reconnect clients if the server fails during the upgrade.
Confirm that LiveUpdate is successfully downloading and distributing 14.3-compatible definitions.