Microsoft Defender isn't enough to fully protect your PC. You don't have to pay extra, though—just use one of the top free ...

Keep your computer and other devices safe from viruses and other harmful software with these top-rated antivirus programs.

From premium companies like Bitdefender and Malwarebytes to budget tools like AVG, I’ve tested the most popular antivirus ...

Discover Avast’s free version. Get full details on its key features, how it protects your device, how to safely install it, ...

Firewalls scan data sent to your computer for malware and attempt to block files or other data they deem suspicious. Like ...