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.

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

Antivirus software is simply essential, but if you've upgraded to Windows 11, the built-in security suite might be good enough on its own. Microsoft Defender Antivirus is included for free as part of ...

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 ...