Being built into the OS means it is always active, rarely requires setup, and causes few system conflicts.
Microsoft Defender for Endpoint provides sophisticated EDR (Endpoint Detection and Response) and AI-powered, automated investigation. Key Weaknesses Microsoft Defender Antivirus in Windows Overview Malware Protection From Microsoft
Here is a comprehensive review of Microsoft’s malware protection as of 2026. Key Strengths Being built into the OS means it is
Includes ransomware protection (via Controlled Folder Access), phishing protection (via SmartScreen), and firewall control. rarely requires setup
It is free, meaning you get premium-level protection without a subscription fee.