Symantec Endpoint Protection 143 Ru6 System Requirements Top ((top)) Jun 2026

2 GB RAM minimum, though 8 GB RAM or more is strongly recommended to handle regular client communication, data logging, and policy processing.

| Service | Port | Protocol | Direction | | :--- | :--- | :--- | :--- | | SEPM Console (HTTPS) | 8443, 8446 | TCP | Inbound to SEPM | | Client-to-SEPM communication | 8014, 8015 | TCP | Inbound to SEPM | | Definition Downloads | 80, 443 | TCP | Outbound from clients | | LiveUpdate Administrator | 21, 443 | TCP | Outbound | | Management Server replication | 1433 (SQL) | TCP | Between SEPM hosts |

To install Symantec Endpoint Protection (SEP) 14.3 RU6 , your systems must meet specific hardware and software requirements. A critical change in this version is the

If you are upgrading from Symantec Endpoint Protection 12.x or 14.0, note that on the server side. Additionally, older CPUs lacking the SSE2 instruction set (e.g., Intel Core 2 Duo pre-2008) will fail to load the RU6 drivers.

Below is a breakdown of the essential requirements to ensure your infrastructure is ready. 1. Key Changes in 14.3 RU6 symantec endpoint protection 143 ru6 system requirements top

It is also not possible to run a 32-bit client on a 64-bit computer. For organizations that still have 32-bit computers, they must run the client version 14.3 RU5 or earlier. This policy marks the end of the 32-bit era for the Symantec Endpoint Protection product line.

Requires Windows 7-11 or Server 2008 R2-2022. 1 GB RAM (2 GB+ recommended) and ~535 MB free space.

Requires 395 MB of available storage on the main drive, with an extra 135 MB freed strictly during the initial installation sequence.

For virtual environments, the following requirements apply: 2 GB RAM minimum, though 8 GB RAM

The macOS deployment package for 14.3 RU6 provides advanced multi-layered malware shielding designed for Apple's desktop eco-system.

The client software is installed on every endpoint—workstations and servers. RU6 introduced a "Unified Agent" architecture, which is lighter than previous versions but requires modern hardware to leverage its real-time machine learning (ML) components.

A minimum of 16 GB available space is required on the system drive (100 GB is recommended for logging expansion).

on the system drive for standard clients, with an additional 135 MB required during the installation process. Supported OS: Additionally, older CPUs lacking the SSE2 instruction set (e

When planning your deployment, it is crucial to be aware of the product's support lifecycle.

Before diving into specific hardware numbers, it’s essential to highlight the single most significant change in this version:

This architectural change also means that SEP 14.3 RU6 and later versions do not require Windows SYSWOW64 support for installation and operation, as they do not have 32-bit components to emulate.