Symantec Endpoint Protection 143 Ru6 System Requirements Top Page

| Requirement | Specification | |-------------|---------------| | OS | Windows 11 (21H2–23H2)
Windows 10 (21H2–22H2)
Windows 8.1
Windows Server 2022, 2019, 2016, 2012 R2 | | CPU | 1+ core (2+ recommended) | | RAM | 1–2 GB (more for servers or with LiveUpdate) | | Disk Space | 1.5–2 GB for installation + definitions | | .NET | 4.8 (required for some features) |

The SEP Client is the agent installed on user workstations and servers. Unlike the heavy management console, the client is designed to be lightweight, though modern EDR features require more RAM than legacy antivirus agents. symantec endpoint protection 143 ru6 system requirements top

The client is the lightweight but deceptive component. Lightweight refers to CPU; memory and storage are where surprises hide. Do not trust the marketing "1 GB RAM, 1 core"

In VDI environments (Citrix, VMware Horizon), redirect the scan cache to a non-persistent RAM disk or separate persistent volume. RU6’s cache is stored per-machine – for clones, this balloons storage. Use vdd.cacheLocation="T:\" via a custom GPO registry key. RU6 is stable and effective—when the hardware below

Do not trust the marketing "1 GB RAM, 1 core". For a functional, non-frustrating SEP 14.3 RU6 deployment:

RU6 is stable and effective—when the hardware below it isn't starved. Treat these requirements not as thresholds, but as starting points for safe operation.