If you run multiple SEPM servers in a replicating site architecture, you must disable replication before upgrading. Go to > Servers .

Within the SEPM console, navigate to Admin > Servers > Local Site > Edit . Under Server Features , ensure Internal LiveUpdate is enabled. Clients will download the 14.3 definitions and binaries automatically over several days.

By following this guide, you can ensure that your Symantec Endpoint Protection environment is upgraded to 14.3 seamlessly, providing you with the latest in security technology.

Upgrading from Symantec Endpoint Protection (SEP) 14.2 to 14.3 is a significant transition that introduces enhanced security features, including improved behavioral protection and Antimalware Scan Interface (AMSI) integration 🛡️ Pre-Upgrade Requirements

The installer will automatically detect your existing 14.2 installation and notify you that it will perform an in-place upgrade. Click to begin copying files. Step 3: Database Upgrade and Schema Migration

Go to > right-click your group > Install Packages > Deploy to Group > select the 14.3 client package.

If your administrators access SEPM via a remote console installation:

Optimized scanning engines that consume less CPU and RAM on client machines.