KB5059091: Overview with user sentiment and feedback

Overview

KB5059091 is an out-of-band update released on April 16, 2025, for Windows 10 and related server versions. This update primarily addresses issues with Windows containers running in Hyper-V isolation mode. The update is particularly important for enterprise environments using containerization technology, as it resolves compatibility problems between container images and host systems.

The update is part of Microsoft's ongoing efforts to improve system reliability and compatibility across different Windows versions. It comes alongside the servicing stack update (KB5055662) which enhances the update installation process itself.

General Purpose

The primary purpose of this update is to resolve an issue affecting Windows containers running in Hyper-V isolation mode. The problem specifically relates to containers failing to start when their update level doesn't match that of the hosting utility virtual machine (UVM). This mismatch was causing compatibility problems between system files, resulting in startup failures. The update improves the way containers access necessary system files from the host, enhancing reliability and compatibility across different Windows versions.

Additionally, this update includes quality improvements to the Windows servicing stack, which is the component responsible for installing Windows updates. These improvements are designed to mitigate potential issues during the update installation process and ensure more reliable system updates.

General Sentiment

The general sentiment towards this update appears positive, particularly for organizations using Windows containers in their infrastructure. The update addresses a specific and potentially disruptive issue with container startup failures, which is crucial for maintaining stable operations in containerized environments. The inclusion of servicing stack improvements also suggests Microsoft's commitment to enhancing the overall update experience.

However, it's worth noting that this is an out-of-band update, indicating it addresses an urgent issue that couldn't wait for the regular monthly update cycle. While this shows Microsoft's responsiveness to critical issues, it also highlights the severity of the container compatibility problem that needed immediate attention.

Known Issues

• Devices with Citrix Session Recording Agent (SRA) version 2411 may experience issues completing installation of the January 2025 Windows security update
• Affected devices might initially download and apply updates correctly but fail during restart
• Error messages may appear during installation indicating "Something didn't go as planned"
• The system will revert to previously installed updates if installation fails
• This issue primarily affects organizations using Citrix SRA version 2411 released in December 2024
• Home users are not expected to be affected by this issue

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 2025-05-21 07:43 AM

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