ZoneAlarm Free Antivirus + Firewall 14.1

Free

Protect your PC from viruses, spyware, ransomware, hacking, and other threats.

Scan and remove malware and enable real-time protection.

Protects PCs against viruses, trojans, worms, and other malware.

ZoneAlarm Internet Security Suite protects you from viruses and other threats.

Monitors programs for suspicious behavior spotting and stopping new attacks.