Symantec Endpoint Protection Arm64 Work =link= Jun 2026

: Supported on Windows 11 GA builds (21H2, 22H2).

: Fine-grained tracking of unusual process-to-process interactions is disabled. symantec endpoint protection arm64 work

| Feature | Status on ARM64 | | :--- | :--- | | | ❌ Known issue. SEP client fails to execute Host Integrity check on ARM Processor systems (Error Type: 0x00200001, Error Code: 0xFFFFFFFF). Broadcom is aware and investigating. | | Custom Application Behavior | ❌ Not supported | | Threat Defense for AD | ❌ Not supported | | Web and Cloud Access Protection | ❌ Not supported | | Exploit Protection | ❌ Not supported | | Legacy Browser Protection | ❌ Not supported. This includes older Internet Explorer and Firefox‑based protection under the Intrusion Prevention Policy | | Application Control | ❌ Not supported | : Supported on Windows 11 GA builds (21H2, 22H2)

Because of the ARM64 security model, simply installing the software is not enough. The user (or MDM administrator) must approve the System Extension loading. SEP client fails to execute Host Integrity check

The short answer is that Broadcom (the current owner of Symantec) has made significant strides, but "making it work" still requires careful planning, the right version, and an understanding of where native support ends and emulation begins.