KB5055557: Overview with user sentiment and feedback

Overview

KB5055557 is the April 2025 Monthly Rollup update for Windows Server 2012 R2. This cumulative security update includes improvements and fixes that were part of update KB5053887 (released March 11, 2025). The update addresses several key areas including Daylight Saving Time (DST) changes, OS Security enhancements, and Kerberos Authentication improvements.

This update requires the latest Servicing Stack Update (SSU) KB5055665 to be installed first. Without the latest SSU, users will not be able to install this update, potentially leaving their systems at security risk.

General Purpose

The update implements several important changes and improvements. It includes an update for the Aysen region in Chile to support government DST change orders in 2025. The update creates a new %systemdrive%inetpub folder as part of security enhancements, which should not be deleted regardless of IIS status. It also adds protections for a vulnerability in Kerberos Authentication related to certificate authorities in the Windows root store but not in the NTAuth store, which may result in Event ID 45 logs on domain controllers.

General Sentiment

The general sentiment towards this update appears positive, with no major issues reported. Microsoft has provided clear documentation about the changes and their impacts, particularly regarding the new inetpub folder creation and Kerberos authentication modifications. The requirement for the latest SSU before installation is well-documented, helping administrators prepare for proper deployment. However, administrators should note the potential for Event ID 45 logs appearing on domain controllers after installation, which is an expected behavior rather than an issue.

Known Issues

• No known issues have been reported with this update
• Microsoft is actively monitoring the update's performance through the Windows release health dashboard

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 02:19 AM

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