AVG Free Antivirus

AVG AntiVirus Free covers the malware basics on Windows, Mac, Android, and iOS at no cost, though its scans lean heavier on the CPU than most rivals.

Avira Free Antivirus

Avira Free Security packs antivirus, a VPN, a password manager, and cleanup tools into a single free download for Windows, Mac, Android, and iOS.

Malwarebytes Free

Windows already runs its own antivirus. Malwarebytes Free is the on-demand scanner people install anyway, for the malware Defender lets through.

Panda Free Antivirus

Panda Free Antivirus pairs cloud-based malware scanning with a small daily VPN allowance, built for Windows PCs where a heavier suite would slow things down.