Microsoft has confirmed that Secure Boot certificate updates are failing or being blocked on some Windows 11 PCs.

Microsoft has added Windows 11 Cloud Rebuild to preview builds, letting unbootable PCs reinstall from the cloud without USB ...

Your PC might mistakenly detect external drives, removable media (USB devices or non-bootable discs), etc., as bootable devices and attempt to boot from them. In this case, remove or disconnect ...

Microsoft is investigating reports that some Windows 11 devices are failing to boot with "UNMOUNTABLE_BOOT_VOLUME" errors after installing the January 2026 Patch Tuesday security updates. The issue ...

Attempting to install future Windows updates on devices with this "improper state" could cause the system to become unbootable. Microsoft said the issue affected only physical devices running Windows ...

Microsoft is making it easier for IT admins to monitor the status of Secure Boot on Windows devices across their organization. Secure Boot has been a pretty hot topic for Microsoft lately, especially ...