Microsoft is taking its time with the boot certificate rollout, but you don't have to. Activate the latest UEFI CA 2023 right now.

In June 2025, Microsoft announced that, in June 2026, it would begin deprecating Secure Boot certificates of Windows systems from 2011, which were superseded by their 2023 counterparts.

Microsoft has recently begun replacing expiring Secure Boot certificates on eligible Windows 11 systems running 24H2 and 25H2, according to a report by BleepingComputer. Update: On February 10, ...

Secure Boot certificate upgrades is bad news for Windows 10 ...

Secure Boot, a tool that’s built into hundreds of millions of PCs to keep them from loading unverified software via UEFI, is a fundamental cornerstone of modern computer security. It uses ...

In brief: Secure Boot was originally introduced with Windows 8 as a firmware-based security feature designed to protect the OS from potentially malicious boot code. After more than 15 years, the ...

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 ...

I was looking to switch a Dell Latitude from Windows 11 to the officially supported Ubuntu image dell provides for that model, but Rufus gives me this warning: I'm assuming the issue is that some ...

Microsoft has launched a critical "generational refresh" of Secure Boot certificates to replace aging security keys that are nearing their end-of-life. This move is essential for maintaining the ...

Some signed third-party bootloaders for the Unified Extensible Firmware Interface (UEFI) could allow attackers to execute unauthorized code in an early stage of the boot process, before the operating ...

Secure Boot is one of the key Windows 11 hardware requirements, and its certificates will soon expire. Here is why it is important and what you need to know. About three months ago, Microsoft ...