KB5055570: Overview with user sentiment and feedback

Overview

KB5055570 is a security-only update released on April 8, 2025 for Windows Server 2008 R2 Premium Assurance. This update includes important security improvements and addresses vulnerabilities in Windows Server 2008 R2. Support for Windows Server 2008 R2 Premium Assurance will end on January 13, 2026, while Extended Security Updates (ESU) ended on January 10, 2023.

This is a critical security update that requires the latest Servicing Stack Update (SSU KB5056456) to be installed first. The update creates a new %systemdrive%inetpub folder as part of security enhancements, which should not be deleted regardless of IIS status.

General Purpose

The primary purpose of this security-only update is to address security vulnerabilities in Windows Server 2008 R2. It includes changes that increase system protection through the implementation of new security measures, including modifications to the system directory structure. The update specifically addresses CVE-2025-21204, introducing security improvements that require no direct action from IT administrators or end users after installation. The update is part of Microsoft's ongoing commitment to maintaining security for Windows Server 2008 R2 systems still under Premium Assurance support.

General Sentiment

The general sentiment towards this update appears cautiously positive. While it's a necessary security update, there are some implementation requirements that administrators need to be aware of, particularly the prerequisite of installing the latest Servicing Stack Update (KB5056456) before this update can be installed. The update's security improvements seem straightforward, with clear documentation about the changes being made, such as the creation of the new inetpub folder. However, the approaching end of Premium Assurance support in January 2026 adds some urgency to considering longer-term upgrade plans.

Known Issues

• Requires installation of latest Servicing Stack Update (KB5056456) before this update can be installed
• New %systemdrive%inetpub folder will be created and must not be deleted
• Language packs must be reinstalled if installed after this update

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 2025-04-19 12:44 PM

Back to Knowledge Base Catalog