Category: Windows Hardening & Administration

Microsoft Defender ASR via PowerShell: Audit → Warn/Block (SAFE Method) Last updated: 2026-01-02 This guide shows a safe way to configure Microsoft Defender Attack Surface Reduction (ASR) rules with PowerShell while preserving your existing rule set. Microsoft explicitly warns that Set-MpPreference overwrites the existing set of rules, so we apply changes carefully. Microsoft Learn+1 0)…