Emsisoft Anti-Malware monitors all active programs in real time for dangerous behavior (Behavior Blocking) and can detect new unknown Trojans, Worms, Viruses and other damaging programs (Zero-Day dangers) without daily updates. Developed by Emsisoft
License: Freemium
Windows Defender is a built-in antivirus solution that offers basic protection with a focus on integration and ease of use, while Emsisoft Anti-Malware provides advanced features and higher detection rates but may require more system resources and a subscription for full functionality.