Microsoft’s CA-2023 Secure Boot update broke PCs. Learn why UEFI firmware failed, how vendors reacted, and how to fix your boot issues.

Microsoft has halted the rollout of a Windows update after some users encountered installation errors. The update, KB5079391, was released last week as a preview rather than a security update.

Microsoft told Windows Latest it pulled Windows 11 KB5079391 after the optional update caused installation issues on some PCs.

Microsoft is investigating reports that its January 2026 security updates are leaving some Windows 11 machines stuck in a boot loop, adding another entry to this month's bumper post–Patch Tuesday ...

Microsoft has confirmed that Windows updates released since August 29, 2025, are breaking authentication on systems sharing Security Identifiers. Windows uses unique alphanumeric strings known as ...

Windows 11 now shows Secure Boot alerts to help users prepare for 2026 certificate expiration and avoid security issues.

Windows 10 update KB5068781 from November 11th, 2025 was the dream of all Windows 10 users. As the first ESU update, it’s meant to keep Windows 10 PCs protected from malware and hacker attacks even ...

PCWorld reports that users are experiencing unwanted Windows 11 updates, including unauthorized upgrades from 24H2 to 25H2 and even Windows 10 to Windows 11 without consent. These unexpected ...

Update October 21, 05:08 EDT: Microsoft has released the KB5070773 emergency update to fix this issue. Microsoft has confirmed that this month's security updates disable USB mice and keyboards in the ...