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 ...

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

When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years. That’s how I met PCMag’s editorial team, who brought me on board in 1986. In the years since that ...

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

Overview: Lightweight antivirus software improves protection without reducing speed on older Windows computers ...

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

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