KB5055521: Overview with user sentiment and feedback

Overview

KB5055521 is a cumulative update for Windows 10 version 1607 and Windows Server 2016 released on April 8, 2025. This update contains important security improvements and quality enhancements, including protections for Kerberos Authentication vulnerabilities and updates to Daylight Saving Time settings for the Aysen region in Chile.

The update requires the latest Servicing Stack Update (KB5055661) to be installed first before it can be deployed. This is a critical security update that addresses multiple vulnerabilities and includes system improvements.

General Purpose

The primary purpose of this update is to address security vulnerabilities and provide system improvements. It includes enhanced protection for Kerberos Authentication by adding safeguards against vulnerabilities related to certificate authority storage. The update also implements Daylight Saving Time changes for the Aysen region in Chile to comply with government regulations. Additionally, it introduces a new security feature creating an inetpub folder on the system drive as part of increased system protection measures, regardless of whether IIS is enabled on the device. The update focuses on strengthening system security and ensuring proper time zone compliance for affected regions.

General Sentiment

The overall sentiment towards this update appears cautious but generally positive. While it introduces important security improvements and necessary system changes, there are some concerns regarding the Active Directory Group Policy audit logging functionality. The update requires careful attention to prerequisites, specifically the installation of the latest Servicing Stack Update (KB5055661) before deployment. Microsoft has provided clear documentation and workarounds for the known issues, which helps maintain confidence in the update despite the reported complications.

Known Issues

• Active Directory Group Policy audit logging shows inconsistencies where Logon/Logoff events in local policy might not display as enabled even when they are functioning correctly
• The "Audit logon events" policy may incorrectly show "No auditing" in Local Group Policy Editor despite being active
• Event ID: 45 events may be logged on domain controllers due to Kerberos Authentication changes

Disclaimer: We take measures to ensure that AI-generated content is of the highest possible quality, but we cannot guarantee its accuracy and recommend that users do their own independent research. Generated on 2025-05-24 03:36 AM

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