Run Setup.exe from the 14.3 installation files on your SEPM server.
: Perform a full backup of the database, logs, and recovery files found in %Symantec\Symantec Endpoint Protection Manager\data\backup . Verify System Requirements :
Choose the 14.3 package and select "Upgrade from" 14.2 to 14.3. Method B: Client Deployment Wizard symantec endpoint protection upgrade 14.2 to 14.3
Step 2 — Review compatibility & client considerations
If using an external Microsoft SQL Server, verify it meets the 14.3 requirements (SQL Server 2014 through 2019/2022 depending on the specific 14.3 MP/RU release). Run Setup
: Windows Server 2012 R2 requires the Visual C++ 2017 redistributable as a prerequisite. 2. Preparation Checklist
Improved kernel support for modern Linux distributions without requiring complex manual compilations. 2. Pre-Upgrade Checklist and Architecture Requirements Method B: Client Deployment Wizard Step 2 —
Reduced system overhead and faster scan times.
For unmanaged machines or specific subnets requiring immediate upgrades, use the push method. In SEPM, go to > Add a Client . Select New Package Deployment and click Next .
. Check the box for "Enforce client upgrade to version" and select the 14.3 package. Manual Export: If you prefer manual installation, go to Admin > Install Packages
Why move from 14.2 to 14.3? ✅ Improved heuristic detection for fileless and zero-day attacks. ✅ Performance Boost: Optimized scan engines mean less CPU impact on your endpoints. ✅ Product Lifecycle: Ensure you stay supported and secure against the latest threat landscape.