Items in the navigation pane of File Explorer may disappear in Windows

This article describes an issue that occurs when many file operations occur in quick succession in Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2. You can resolve this issue by using the update in this article. Before you install this update, check out the Prerequisites section.

Symptoms

Assume that many batched file operations occur on items that are visible in the navigation pane of File Explorer. When this issue occurs, those items do not appear in the navigation pane.

Note The issue does not occur immediately when you log on to the computer. It occurs during the regular usage.

How to obtain this update

Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Method 1: Windows Update

This update is provided as a Recommended update on Windows Update. For more information on how to run Windows Update, see How to get an update through Windows Update.

Method 2: Microsoft Download Center

The following files are available for download from the Microsoft Download Center:
Operating systemUpdate
All supported x86-based versions of Windows 8.1Download Download the package now.
All supported x64-based versions of Windows 8.1 Download Download the package now.
All supported x64-based versions of Windows Server 2012 R2Download Download the package now.
Note The update for Windows RT 8.1 can be obtained only from Windows Update.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Update detail information

Prerequisites

To apply this update, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed in Windows 8.1 or Windows Server 2012 R2.

Registry information

To apply this update, you do not have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this update.

Update replacement information

This update does not replace a previously released update.
File information

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

Cause

This issue occurs because of a race condition in the explorer.exe process that causes it to handle notifications in an incorrect order on the system.

References

See the terminology that Microsoft uses to describe software updates.
Properties

Article ID: 3018467 - Last Review: Jul 14, 2015 - Revision: 1

Feedback