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

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 ...

Your PC's critical security certificates may be about to expire - how to check ...

Microsoft will roll out new Secure Boot certificates for Windows users starting June, as the old certificates will expire.

PCWorld reports that Microsoft is rolling out critical Secure Boot certificate updates for Windows 11 systems to replace certificates expiring in June 2026. Without these updates, older Windows 11 PCs ...

Microsoft has linked recent reports of Windows 11 boot failures after installing the January 2026 updates to previously failed attempts to install the December 2025 security update, which left systems ...