Looking for a new antivirus? My tried and tested favorites will improve the security of your desktop PC, laptop, and mobile devices.

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 ...

As a good PC user, I run security software in Windows to protect my computer from malware that may pop up as I go about my day. But what about malware that tries to launch before Windows even loads?

Microsoft has invested heavily in increasing the security of Windows. The firewall, the automatically activated antivirus program, various security functions for protection against boot viruses and ...

Mike De Socio is a CNET contributor who writes about energy, personal finance, electric vehicles and climate change. He's also the author of the nonfiction book, "Morally Straight: How the Fight for ...

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.