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

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

In June 2025, Microsoft announced that, in June 2026, it would begin deprecating Secure Boot certificates of Windows systems ...

Get ye to Windows Update, because there's a good chance you've got new Secure Boot certificates to install. Microsoft just announced that it will be refreshing those certificates, which were ...

Microsoft is in the middle of a Secure Boot certificate transition that many users will not notice until it becomes a problem. Several long-standing certificates used by Windows devices are ...

Microsoft says Secure Boot certificates are being updates, and Windows 10 isn't fully eligible Affected devices will enter a "degraded security state" Is this another push to drive Windows 11 adoption ...

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

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 ...

Windows 10 and Windows 11 rely on three security certificates that begin expiring from June 2026, with additional expirations later in 2026. Microsoft is treating this as a broad, ecosystem-level ...

Microsoft says Secure Boot certificates are being updates, and Windows 10 isn't fully eligible Affected devices will enter a "degraded security state" Is this another push to drive Windows 11 adoption ...