Your PC's critical security certificates may be about to expire - how to check ...

Microsoft's Secure Boot certificates expire in June, and unless you've enrolled in its 'Extended Security Updates' program, ...

PCWorld outlines four essential security upgrades for new PCs: enabling biometric login through Windows Hello, verifying encryption settings, optimizing antivirus configurations, and setting up ...

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.

Computers of any kind are at risk of receiving malware, and even though Windows 11 comes with Microsoft Defender Antivirus ...

Windows 11 is adding Baseline Security Mode to block unsigned apps, services, and drivers by default, plus new consent prompts for sensitive access and bundled installs, with exceptions when needed ...

Windows 11 February 2026 update adds Cross-Device Resume, MIDI upgrades, security fixes, and major bug fixes for 24H2 and 25H2.

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 ...

I’ve picked up a few PC security tips in my time as a PCWorld editor, but I wasn’t born with that information. Yep, it’s been a gradual learning curve for me over many years of writing about security.

Windows 11 KB5074105 improves Smart App Control by allowing users to re-enable it without reinstalling Windows.

Microsoft plans Windows 11 “secure by default” mode with signed apps only and Android-style permissions for files, camera, ...