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.