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Microsoft Identifies Root Cause of Windows 11 Boot Failures Linked to Failed December 2025 Update

Microsoft Links Recent Boot Failures in Windows 11

Source: BleepingComputer

Background

Microsoft has recently reported a concerning issue affecting users of Windows 11. The company has linked the recent boot failures experienced by many users to an attempt that failed at installing the December 2025 security update. This failure left systems in an 'improper state,' leading to widespread boot issues.

Impact

The boot failures can significantly disrupt user productivity and cause frustration as affected users are unable to access their systems. This issue has the potential to affect a large number of Windows 11 users, highlighting the importance of addressing such critical vulnerabilities promptly.

Criticality Score

7/10

Threat Type

Vulnerability

CVE IDs

Suggested Categories

Relevance Score

85