COMODO Internet Security Alternatives for Windows

Avast Free Antivirus offers robust and free protection against viruses, malware, spyware, and phishing threats. It provides real-time scanning, browser protection, and several advanced security features to keep your system safe without impacting performance.

Avira Antivirus offers robust real-time protection against a wide array of digital threats including viruses, malware, spyware, and ransomware. Known for its lightweight design and effective scanning engine, it provides essential security features to keep your PC safe without significantly impacting performance.

AVG Antivirus Free Edition provides essential real-time protection against viruses, malware, spyware, and other online threats. It includes core security features designed to keep your device safe while browsing, downloading, and accessing email.

ESET NOD32 Antivirus provides essential protection against malware with a focus on performance and a low system footprint. It features real-time scanning, heuristic detection, and anti-spyware capabilities, ensuring robust defense without hindering your computer's speed.

Clam AntiVirus (ClamAV) is a free, open-source antivirus engine designed for scanning emails, files, and directories for various types of malicious software, including viruses, worms, and Trojans.

Kaspersky Anti-Virus is a robust security solution providing essential protection against a wide range of cyber threats, including malware, viruses, and ransomware. It utilizes advanced technologies for real-time scanning and proactive defense to keep your PC safe.

ClamWin is a free and open-source antivirus program for Microsoft Windows. It utilizes the Clam AntiVirus engine and offers on-demand scanning and scheduled scans, making it a lightweight and portable security solution.

Panda Antivirus is a comprehensive security suite providing robust real-time protection against a wide range of online threats. It leverages advanced heuristic and zero-day detection technologies to keep your devices safe. Key features include a built-in VPN, parental controls, and a USB drive cleaner, offering layered security beyond just traditional antivirus.

Windows Defender, now known as Microsoft Defender Antivirus, is a robust real-time anti-malware solution built directly into Windows. It provides comprehensive protection against viruses, ransomware, spyware, and other threats without requiring separate installation or subscription for core functionality. It's the foundational security layer for millions of Windows users worldwide.

Kaspersky Internet Security provides comprehensive protection against viruses, malware, phishing, and online threats. It includes a firewall, anti-spyware, and features for secure online banking and shopping, offering a robust defense for your digital life.

360 Total Security provides a comprehensive suite of tools to protect your PC from various threats and optimize its performance. It combines multiple antivirus engines with system cleanup and tune-up utilities for a complete security and speed solution.

Dr.Web Anti-virus provides robust protection against a wide array of cyber threats, including viruses, Trojans, spyware, and rootkits. Utilizing heuristic analysis and zero-day protection, it offers real-time monitoring and prevention through lightweight, customizable software that doesn't weigh down system resources.

Immunet FREE Antivirus is a cloud-based security solution designed to provide real-time antimalware and antivirus protection. Leveraging the power of the cloud, it offers fast detection and protection against emerging threats without significantly impacting system performance.

PC Tools Firewall Plus was a free personal firewall software designed to monitor network traffic and protect users from unauthorized access and malicious threats. It offered features like real-time protection, application control, and network monitoring to enhance online security.

Windows Firewall Notifier (WFN) is a lightweight, portable utility that extends the native Windows Firewall's capabilities, providing real-time connection monitoring, bandwidth usage tracking, and granular control over outbound network connections.

Avast! Pro Antivirus offers robust protection against malware, including viruses, spyware, and ransomware, with advanced features like a sandbox for safe file execution and real-time protection. It's designed to provide comprehensive security for your digital life.

F-Secure Anti-Virus provides essential real-time protection against viruses, malware, spyware, and other online threats. It focuses on providing a simple yet effective layer of security for your devices.

AVG Internet Security provides comprehensive online protection with advanced antivirus, firewall, and anti-spyware capabilities. It shields against malware, ransomware, and phishing threats, while also offering enhanced privacy features.

Ad-Aware Free Antivirus+ by Lavasoft provides essential protection against malware and spyware threats for Windows users. It combines antivirus and anti-spyware capabilities with real-time monitoring and browser protection.