The best free alternative to Microsoft Security Essentials is Avast Free Antivirus. If that doesn't suit you, our users have ranked more than 25 alternatives to Microsoft Security Essentials and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Microsoft Security Essentials are ClamAV, Microsoft Defender, Bitdefender Antivirus and Avira Antivirus.
Provides free real-time protection against viruses, malware, spyware, and ransomware, with secure HTTPS scanning, customizable scans, password management, home network security, antiphishing, Smart Scan, rescue disk creation, and software updating.
Clam AntiVirus is an open source (GPL) anti-virus toolkit for UNIX, designed especially for e-mail scanning on mail gateways. It provides a number of utilities including a flexible and scalable multi-threaded daemon, a command line scanner and advanced tool for automatic...
Windows Security (known as Windows Defender Antivirus before Windows 10 May 2020 Update, Windows Defender before Windows 10 Creators Update, or Microsoft Defender Antivirus before Windows 11) is an anti-malware component of Microsoft Windows.
Free antivirus offering comprehensive protection with real-time threat detection, AI-powered security, lightweight performance, Game mode, user-friendly interface, and auto updates. Supports multiple platforms and provides live customer support. Ideal for all users.
Offers real-time protection from malware, ransomware, viruses, and spyware, with advanced repair, browser safety, software updates, VPN, PC optimization tools, cloud-based updates, and system clean-up. Available for Windows, MacOS, Android, and iOS devices.
ClamTk is a graphical front-end for ClamAV, an open source antivirus engine for detecting trojans, viruses, malware & other malicious threats. It is designed to be an easy-to-use, lightweight, on-demand antivirus scanner for Linux systems.
AVG AntiVirus Free provides basic antivirus and antispyware protection for home users. Virus database updated every day. Includes innovative LinkScanner for web-protection.
Comodo Internet Security is a free, very voluminous and multi-layered security application that keeps hackers out and personal information in.
ClamWin is a free, open-source antivirus software for Microsoft Windows, using the ClamAV engine. It has an easy-to-use installer and its source code is publicly available. It features high detection rates for viruses and spyware, a scanning scheduler, and automatic updates of...
Panda Antivirus protects you while you work, play, or browse online.
Antivirus Protection Real-time protection against all types of malware and spyware. Schedule periodic scans and/or scan your computer on demand.
USB protection Protect your PC by preventing the automatic execu.
Comodo Antivirus eliminates viruses, spyware, and other malware from desktops and networks.
NANO Antivirus and NANO Antivirus Pro provide protection from all types of malware and include real-time file and network protection and remediation, regular 24/7 updates from the NANO Security antivirus laboratory, an intuitive interface and well-balanced settings for casual users.
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more features, more customisable