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

In this post, we will show you multiple methods to enable or disable Windows Boot Manager on Windows 11/10. Windows Boot Manager (BOOTMGR) is one of the main components of the Windows OS that ...

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

Secure Boot is a feature found in Windows 10 and Windows 11 that blocks unsafe apps or software from loading during a PC's startup process. This feature helps keep your PC clear of malware that gets ...

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that, in June 2026, it would begin deprecating Secure Boot certificates of Windows systems from 2011, which were superseded by their 2023 counterparts.

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 ...

Do you see Event ID 1796 in your Windows 11/10/Server logs? If the Secure update process cannot complete and fails with an error message— The Secure Boot update ...