KB5078774: Overview with user sentiment and feedback
Last Updated April 10, 2026
Probability of successful installation and continued operation of the machine
Overview
This security update for Windows Server 2012 R2 includes miscellaneous security improvements to the internal Windows OS functionality. The update is part of the March 2026 Cumulative Monthly Rollup (KB5075970) and addresses various security vulnerabilities. While no specific issues are documented for this release, it's important to note that the installation of this Extended Security Update (ESU) might fail when trying to install it on an Azure Arc-enabled device running Windows Server 2012 R2. To ensure a successful installation, users should make sure all the required endpoints for ESU are met as described in the Connected Machine agent network requirements.
General Purpose
The purpose of this update is to provide security improvements and address vulnerabilities in the Windows Server 2012 R2 operating system. The update is part of the monthly rollup process and includes a variety of fixes and enhancements to internal Windows OS functionality. Users should ensure they have the latest Servicing Stack Update (SSU) installed before applying this update, as the lack of the latest SSU may prevent the installation of this update.
General Sentiment
The general sentiment towards this update is neutral. While it provides important security improvements, the lack of any known issues or major changes suggests it is a relatively routine monthly update. However, the potential installation failure on Azure Arc-enabled devices running Windows Server 2012 R2 is a concern that users should be aware of. Overall, the update appears to be a necessary security patch, but users should carefully follow the installation guidance to avoid any issues.
Known Issues
- The installation of this Extended Security Update (ESU) might fail when trying to install it on an Azure Arc-enabled device running Windows Server 2012 R2. To ensure a successful installation, users should make sure all the required endpoints for ESU are met as described in the Connected Machine agent network requirements.
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 2026-04-10 07:07 AM
