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, ...

Add Yahoo as a preferred source to see more of our stories on Google. Nataliia Hruts / iStock / Getty Images Plus Virus removal tools can be standalone one-time scanners or built into full antivirus ...

Every time I've had the pleasure of troubleshooting a slow computer, I've discovered that viruses were sapping the PC's performance—and that's included my own. However, you don't have to start pricing ...

Computer viruses can invade your system without you noticing, disrupting its operation and even stealing your data. To protect your device, it's important to know how to recognize signs of infection, ...

Realizing that your computer is infected with a virus can be a heart-stopping moment, but there's no need to panic. Viruses or other malware can have a devastating effect on your PC, slowing its ...

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 ...

This tutorial will guide you on how to run antivirus scans the right way. You'll also learn how to protect your device both before and after a scan. Start by picking the right antivirus software.

Antivirus apps protect your PC's personal information, data, bank accounts, and other sensitive information. We've tested more than two dozen utilities to help you choose the right antivirus for your ...

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