If you are installing the Symantec Endpoint Protection client version 14.3 RU3 or later on Windows, Mac, or Linux computers, you do not need to restart the client.
If you are upgrading the Symantec Endpoint Protection client version 14.3 RU3 or later on Windows, Mac, or Linux computers, you do not need to restart the client with the following exceptions:
- You upgrade from 14.3 RU2 and earlier clients.
- You install or uninstall Application Hardening. Or you upgrade from 14.3 RU3 and earlier clients that have Application Hardening. You manage Application Hardening and the clients from the Integrated Cyber Defense Manager (ICDm) cloud console.
- The Symantec Endpoint Protection client is installed on the same computer as the following agents: the standalone Symantec Data Center Security, standalone Symantec Critical System Protection, or Symantec Data Loss Prevention (15.5 and later).
- A previous upgrade attempt from the same version failed. For example, if you unsuccessfully tried to upgrade from 14.3 RU2 to the current version.