Microsoft Defender is the primary recommendation for most Windows users, as it is integrated into Windows and receives regular updates. Other antivirus options include:
- Bitdefender Antivirus Free: A streamlined, Windows-only option with automatic protection after installation.
- Avast One Free: A cross-platform suite with a custom scan creation feature.
- AVG AntiVirus Free: A traditional free antivirus for personal and family use with an initial scan built into the installation.
- Avira Free Security: Offers virus scanning and protection for private non-commercial use.
- Malwarebytes Free: A manual cleaner for on-demand scanning and cleaning.
- ZoneAlarm Free Antivirus: Combines antivirus with configurable firewall controls for Windows.
- ClamAV: An open-source scanning toolkit with command-line tools.
The selection process focused on the availability of free products, vendor support, and the specific roles of each software, distinguishing between full-time antivirus tools and on-demand scanners. Recommendations include using Microsoft Defender for Windows 10/11, Bitdefender for simplicity, Avast or AVG for fuller apps, Avira for private home use, Malwarebytes for manual cleaning, ZoneAlarm for firewall controls, and ClamAV for technical scanning.