[File System] Fixed: After installing the Windows update 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, such as OneDrive or Dropbox.

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After Windows updates on January 13, 2026 users with Outlook POP account profiles and profiles with PST files report that Outlook hangs and does not exit properly. This issue may occur for any Outlook profile that has PSTs stored on OneDrive. Symptoms reported include: Outlook hangs and shows “Not Responding”.

Search for help on the taskbar, use the Tips app, select the Get help link in the Settings app, or go to support.microsoft.com/windows.

[File System] Fixed: After installing the Windows update 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, such as OneDrive or Dropbox.

To help you resolve this, try the solutions below. We've listed the most common solutions first so try the steps in the order they're listed. Make sure Office is updated to Version 2102 (Build 13801.20808) or later. If you're not setup for automatic updates do the following:

Click Open if you get a pop-up window indicating This site is trying to open Get Help. Follow the prompts on the remaining screens and when prompted, restart your computer.

To generate a transcript and captions on a video's player page in Microsoft 365, navigate to the Video settings menu item and select Generate. This feature is enabled by default but can be disabled via tenant- and site-level settings using the Media Transcription property within PowerShell.