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.

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 ...

Antivirus software is not free of errors and sometimes reports computer viruses where there are none. For this reason, the company Procolored, a manufacturer of textile printers, indignantly defended ...

Even if you're cautious, there's always a chance that a virus could sneak onto your PC. Sure, Windows does have built-in security to block malware, but all it takes is one wrong click. Maybe it's a ...

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

PCWorld highlights three superior antivirus alternatives to PC free trials: Windows Security, free options like Bitdefender and Avast One, and comprehensive paid suites like Norton 360 Deluxe. Free ...

Even signed, virus-free programs can secretly hack your computer through a tactic called DLL hijacking. Hackers slip in malicious helper files that look harmless, letting the app run normally while ...

Some computer viruses evade the surveillance of security software. However, there are clues and strange behaviors that can reveal their presence, such as unusual accents in your texts. Malware often ...

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 ...