KB5078131: Overview with user sentiment and feedback

Overview

This out-of-band update for Windows Server 2019 and Windows 10 Enterprise LTSC 2019 includes fixes and improvements that are part of the following updates:- January 13, 2026—KB5073723 (OS Build 17763.8276)- January 17, 2026—KB5077795 (OS Build 17763.8280)The update addresses issues with file system problems that were causing some applications to become unresponsive or encounter errors when opening or saving files to cloud-based storage like OneDrive or Dropbox. It also resolves issues with Outlook configurations that store PST files on OneDrive, where Outlook could hang and fail to reopen.Additionally, this update includes a servicing stack update (KB5074222) that improves the reliability of the update process to mitigate potential issues during installation.

General Purpose

The key purposes of this out-of-band update are:- Address file system issues that were causing problems with cloud storage integration, including Outlook configurations using OneDrive- Improve the reliability of the update process through a servicing stack update- Resolve known issues with Virtual Secure Mode on some devicesThe update includes fixes for specific problems introduced in prior January 2026 updates, as well as a servicing stack update to enhance the overall update experience. It is an important release to address several critical issues impacting Windows Server 2019 and Windows 10 Enterprise LTSC 2019 users.

General Sentiment

Based on the information provided, this out-of-band update for Windows Server 2019 and Windows 10 Enterprise LTSC 2019 appears to be a necessary and important release. The update addresses several significant issues that were causing problems for users, including file system integration with cloud storage and Outlook configurations using OneDrive. Resolving these types of critical problems is a positive step, as they were likely impacting productivity and causing frustration for affected users.The inclusion of a servicing stack update is also a welcome improvement, as it helps enhance the overall reliability and stability of the update process. This should help mitigate potential issues during installation.However, the update does introduce at least two known issues - one related to Japanese character rendering in PowerShell, and another involving shutdown/hibernation failures on devices with Virtual Secure Mode enabled. These are notable problems that users may encounter after applying the update.Overall, the update seems necessary to address important functional issues, but the known problems introduced are a cause for some concern. Careful testing and monitoring will be important before broadly deploying this update in enterprise environments. Users may also want to consider any available workarounds for the known issues.

Known Issues

This update includes the following known issues:- Japanese characters fail to render correctly in PowerShell - Symptoms: You might have intermittent issues saving, copying, or attaching files using 32-bit apps that are large address aware and using the CopyFile API. This is more likely to affect Windows devices using some commercial or enterprise security software that utilizes extended file attributes. - Workaround: There are two options to address this issue: 1. Start PowerShell from a Command Prompt window 2. Change the font in the PowerShell console to MS Gothic- Some devices with Virtual Secure Mode enabled might fail to shut down or hibernate - Symptoms: After installing this update, some Secure Launch-capable PCs with Virtual Secure Mode (VSM) enabled are unable to shut down or enter hibernation, and instead the device restarts. - Resolution: This issue is addressed in KB5075904.

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 2026-02-28 07:09 PM

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