The boot issue, which Microsoft previously investigated and linked to failed December 2025 updates, affected a limited number of commercial Windows 11 devices running versions 25H2 and 24H2.

Microsoft will use standard Windows 11 updates to keep Secure Boot working on existing PCs as the operating system's original certificates near their end. The company says Secure Boot certificates ...

Microsoft is rolling out critical Secure Boot certificate updates to Windows 11 systems, with PCWorld reporting that current certificates expire in June 2026. Users must install quality updates and ...

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 ...

In the early hours of Wednesday this week, Microsoft released the preview update for Windows 11. It is quite extensive in February. Among other things, the update brings new Secure Boot certificates ...

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