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.

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

You get what you pay for. That’s what they always say, right? And while that can be true for many things, antivirus software is a little different. There are reputable free antivirus solutions out ...

Antivirus has become these days a catch-all term. It doesn’t just mean blocking literal computer viruses, trojans, and other bits of malicious code meant to attack your PC. When you opt to go beyond ...

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 ...

Antivirus software is necessary to install on a computer as it offers protection against several threats that can harm a computer. Windows 11/10 computers come with a built-in free antivirus software, ...

Apple launched its famous "Get a Mac" campaign in 2006 that was largely focused on presenting Macs as a better alternative to PCs. In one of the classic Apple commercials from the campaign, actor ...

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 ...

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 ...

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 ...

When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years. That’s how I met PCMag’s editorial team, who brought me on board in 1986. In the years since that ...