KB5078129: Overview with user sentiment and feedback

Overview

This out-of-band update for Windows 10 versions 19045.6812 and 19044.6812 addresses several key issues. It includes fixes and improvements that are part of the January 13, 2026 KB5073724 and January 17, 2026 KB5077796 updates.

The primary issue addressed is related to the file system. After installing previous Windows updates released on and after January 13, 2026, some applications became unresponsive or encountered unexpected errors when opening files from or saving files to cloud-based storage like OneDrive or Dropbox. This update resolves those problems.

In certain Outlook configurations that store PST files on OneDrive, Outlook may have been hanging and failing to reopen unless the process was terminated or the system restarted. Users may have also seen missing sent items or previously downloaded emails being re-downloaded. This update addresses those Outlook-specific issues as well.

General Purpose

This out-of-band update for Windows 10 versions 19045.6812 and 19044.6812 provides important fixes and quality improvements. The key changes include:- Resolves issues with applications becoming unresponsive or encountering errors when opening or saving files to cloud storage like OneDrive or Dropbox- Addresses problems with Outlook hanging and failing to reopen when PST files are stored on OneDrive- Fixes issues causing missing sent items or re-downloading of previously downloaded emails in Outlook- Includes servicing stack updates to improve the reliability of the Windows update processThis update is recommended for all users running the affected Windows 10 versions to address these important file system and Outlook-related problems.

General Sentiment

Overall, this out-of-band update for Windows 10 versions 19045.6812 and 19044.6812 appears to address some significant issues that users have been experiencing, particularly around file system integration with cloud storage and Outlook stability. The fixes for the unresponsive applications, Outlook hang/restart problems, and missing/re-downloading email issues should be welcomed by users who have been impacted. Resolving these types of file and email-related problems is important for maintaining productivity.However, the update also includes a known issue where some devices with Virtual Secure Mode enabled may fail to shut down or hibernate properly. This is a notable limitation that could impact certain enterprise or security-focused users. Microsoft has indicated this will be addressed in a future update, but in the meantime it's something to be aware of.Overall, the combination of important fixes and the known VSM issue means this update has a somewhat mixed sentiment. The core functionality improvements are positive, but the shutdown/hibernate problem is a significant caveat that users will need to weigh. Thorough testing is recommended before broad deployment, especially for enterprise environments.

Known Issues

• Some devices with Virtual Secure Mode (VSM) enabled might fail to shut down or hibernate after installing this update. Instead, the device restarts.

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 2026-02-01 12:52 AM

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