Microsoft Defender isn't bad, but it's not enough to fully protect your PC. You don't have to pay extra, though—just use one of the top free antivirus apps we've tested.

In 2025, most devices feature built-in antivirus software that scans files you attempt to download, blocking anything it deems suspicious. Antivirus tools also perform automated scans to remove ...

ZDNET tested the best antivirus software on the market, with support for multiple operating systems, VPNs, and robust protection.

Virus removal tools can be standalone one-time scanners or built into full antivirus software. They scan your system for malicious files and remove them. Standalone tools are great as a second opinion ...

We explore how Windows Security and Microsoft Defender protect your Windows 11 computer and why you might want to consider an alternative. Dianna Gunn built her first WordPress website in 2008. Since ...

In the days of tech yore, antivirus software was just that. You installed the application and let it scan your system for malware. But as protecting your PC became ...

Dianna Gunn built her first WordPress website in 2008. Since then, she's poured thousands of hours into understanding how websites and online businesses work. She's shared what she's learned on blogs ...

Over 300,000 new types of ransomware and other malicious software are discovered daily, according to the IT security research institute AV-TEST. Computer viruses can slow your devices, create a slew ...