Microsoft has confirmed that Secure Boot certificate updates are failing or being blocked on some Windows 11 PCs.
The first step that you should do is perform a hard reset. Sometimes, the problem occurs due to the residual charge. In this case, hard resetting your PC can help to fix this issue. This process will ...
XDA Developers on MSN
I made a Windows recovery drive before I needed one, and it saved more than my files
A must-have tool I keep around for emergencies ...
Update: CrowdStrike announced a workaround to take Windows machines from the recovery boot loop. The steps are at the end of the story. The Blue Screen of Death is impacting thousands of Windows ...
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 ...
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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 ...
PCWorld explains Windows Secure Boot as a critical security feature that acts like a checkpoint, verifying software before Windows loads to prevent bootkit malware infections. The 2011 Secure Boot ...
Secure Boot protects modern Windows and Linux PCs. Microsoft Secure Boot certificates from 2011 expire in June and October 2026. Most PC owners are fine if they install the latest updates. Last year's ...
Certificate Expiration: The KEK CA 2011 certificate expired on June 24, 2026, stopping unpatched systems from receiving new Secure Boot revocations. Trust Chain Preservation: The update replaces 2011 ...
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