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A phone displaying the Microsoft Defender logo, with the product page for Microsoft Defender Antivirus for Windows in the background - T. Schneider/Shutterstock Antivirus software is simply essential, ...

It’s imperative to keep Microsoft Defender up to date even when Windows Update isn’t working. Here are several methods to manually update Defender. Microsoft Defender is the built-in anti-malware ...

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 ...

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 ...

Discover the best antivirus programs for computers that keep you protected without slowing you down. Best Antivirus Software ...

Bitdefender vs. McAfee: Which Premium Antivirus Protects Your Data Better? Bitdefender is one of our Editors’ Choice winners for antivirus, but McAfee has some strong points in its favor. Which one ...

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.

Microsoft might see the Mac as a threat to its Windows platform, but that won’t stop it from protecting macOS users. The company’s Defender anti-virus software, previously a Windows exclusive, has ...

Bitdefender Antivirus Free scans and cleans your system using only the resources that you, your software or your operating system are not using, thus achieving near-zero impact on your activities.

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 ...