A crucial Windows security certificate just expired - how to check your PC ...

This article highlights the issues that older computer systems will encounter when the Secure Boot Certificate expires ...

Microsoft has started automatically replacing expiring Secure Boot certificates on eligible Windows 11 24H2 and 25H2 systems. Secure Boot is a security feature that blocks malicious software (like ...

Windows 8 is remembered most for its oddball touchscreen-focused full-screen Start menu, but it also introduced a number of under-the-hood enhancements to Windows. One of those was UEFI Secure Boot, a ...

Windows will now tell you if Secure Boot is working properly. The new status indicates whether you have the latest Secure Boot updates. The April Windows update also patches a whopping 164 security ...

Your PC might mistakenly detect external drives, removable media (USB devices or non-bootable discs), etc., as bootable devices and attempt to boot from them. In this case, remove or disconnect ...

I always get a bit jittery whenever I hear of a new vulnerability that can enable a bypass of the Windows Secure Boot protections. I don’t really need to explain why, do I? Suffice to say, Secure Boot ...

When Windows won’t boot up, it can be a disturbing experience. But that moment passes quickly, and you must decide how to get past this (hopefully) temporary hiccup. Fortunately, there are plenty of ...

A major change is coming to Windows that neither individual users nor IT admins can ignore. Here’s how to prepare. Microsoft is preparing to make a significant change to the Secure Boot system in ...

The original Unified Extensible Firmware Interface (UEFI) Secure Boot certificates for Windows will start expiring in late June. Microsoft has urged IT and security leaders to apply updated ...

The big picture: The Secure Boot certificates Microsoft originally issued in 2011 for Windows devices are set to expire next month. The company is currently rolling out new Secure Boot keys to ...

Microsoft has linked recent reports of Windows 11 boot failures after installing the January 2026 updates to previously failed attempts to install the December 2025 security update, which left systems ...