A recent patch bundle released by Microsoft has caused login issues for some users of Windows Hello on Windows 11 and Server 2025, particularly those with System Guard Secure Launch or Dynamic Root of Trust for Measurement enabled. Affected users may need to reset their login PIN or biometric settings. The problematic patch is KB5055523, which addresses vulnerabilities including CVE-2025-29824, currently exploited by ransomware. Additionally, the March patch KB5053656 has been linked to various issues but also includes enhancements such as bug fixes and new features like Copilot+. Windows 10 users have now received a patch for the CVE-2025-29824 vulnerability.