This has never happened before. Microsoft is expiring the authentication that protects Windows PCs from threats each time ...

As security researchers warn about a dangerous Microsoft Windows update that isn’t legitimate, users must pay close attention ...

In the past, Microsoft has repeatedly pointed out that key security certificates in Windows 11 are due to expire as early as ...

Microsoft’s April 2026 Patch Tuesday fixes 165 vulnerabilities, including two zero-days, in one of the company’s largest ...

Microsoft has added a new feature to Windows 11 that alerts users when Secure Boot certificates—essential for blocking malware during startup—are outdated ahead of their June 2026 expiry. Previously, ...

Microsoft has released the Windows 10 KB5082200 extended security update to fix the April 2026 Patch Tuesday vulnerabilities, ...

A security researcher published details of three security vulnerabilities in Windows Defender, and the code used to exploit ...

Microsoft says Windows 11’s built-in security is strong enough for most users, though power users and enterprises may still ...

I always want to make sure my new Windows PC is protected against security threats. Here are five things I do with that goal in mind.