Microsoft has recently begun replacing expiring Secure Boot certificates on eligible Windows 11 systems running 24H2 and 25H2 ...

Microsoft is rolling out "Secure Boot Allowed Key Exchange Key (KEK) Update," which requires a system reboot to finish ...

Microsoft confirms systems without updated Secure Boot certificates will boot normally but lose some security protections.

Secure Boot protects modern Windows and Linux PCs. Microsoft Secure Boot certificates from 2011 expire in June 2026. Most PC owners are fine if they install the latest updates. Last year's ...

Windows 10 KB5078885 ESU out with Secure Boot 2023, replacing expiring Secure Boot certificates from 2011. But it's a staged roll out.

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that, in June 2026, it would begin deprecating Secure Boot certificates of Windows systems from 2011, which were superseded by their 2023 counterparts.

Many high-end games, professional software, and cloud security applications now require Secure Boot and TPM 2.0 features, which are only supported when the system disk uses the GPT partition format.

Among the requirements for installing Windows 11 are two security features: Trusted Platform Module (TPM) version 2.0 and Secure Boot. As we’ve documented before ...

Windows 8, like Windows 7 and Vista before it, is being touted as the most secure version of Windows ever. In past releases, many of the security improvements have come through exploit mitigations ...