Microsoft says it has resolved a Windows 11 bug that caused some commercial systems to fail to boot with an "UNMOUNTABLE_BOOT_VOLUME" error after installing recent security updates, with the fix ...

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

Microsoft has begun rolling out updated Secure Boot certificates through monthly Windows updates to replace the original 2011 certificates that will expire in late June 2026.

One of those was UEFI Secure Boot, a mechanism for verifying PC bootloaders to ensure that unverified software can’t be loaded at startup. Secure Boot was enabled but technically optional for Windows ...

Microsoft is preparing to roll out new Secure Boot certificates via Windows Update to keep old PCs protected from boot‑level ...

Safe Mode lets Windows start with only essential drivers and services, allowing you to troubleshoot crashes, faulty drivers, ...

Microsoft is reminding users that the Secure Boot ecosystem will soon require a mandatory check-up. The Redmond-backed security protocol, part of the UEFI specification and primarily ...

Starting February 19, all Fortnite tournaments on PC will require users to activate Secure Boot, TPM, and Input-Output Memory Management Unit (IOMMU). Although virtually all PC ...

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Microsoft has announced it will deliver new Secure Boot certificates via Windows Update starting March 2026 before 2011 ...

Microsoft's KB5077181 security update has caused endless restart loops and system lockouts for Windows 11 users, with no official fix released as of February 13.