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 8.1DownloadDownload the package now.
All supported x64-based versions of Windows 8.1 DownloadDownload the package now.
All supported x64-based versions of Windows Server 2012 R2DownloadDownload 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

The global version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows 8.1 and Windows Server 2012 R2 file information and notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    VersionProductMilestoneService branch
    6.3.960 0.17xxxWindows RT 8.1, Windows 8.1, and Windows Server 2012 R2RTMGDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 8.1
File nameFile versionFile sizeDateTimePlatform
Explorerframe.dll6.3.9600.178242,706,43207-May-201516:12x86
Shell32.dll6.3.9600.1782419,734,96007-May-201516:53x86
Windows.systemtoast.explorer.lnkNot applicable1,45021-Aug-201323:49Not applicable
Windowsshell.manifestNot applicable67018-Jun-201312:32Not applicable
For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Explorerframe.dll6.3.9600.178243,109,37607-May-201517:00x64
Shell32.dll6.3.9600.1782422,292,67207-May-201517:50x64
Windows.systemtoast.explorer.lnkNot applicable1,45022-Aug-201306:54Not applicable
Windowsshell.manifestNot applicable67018-Jun-201315:00Not applicable
Explorerframe.dll6.3.9600.178242,706,43207-May-201516:12x86
Shell32.dll6.3.9600.1782419,734,96007-May-201516:53x86
For all supported Windows RT 8.1
File nameFile versionFile sizeDateTimePlatform
Explorerframe.dll6.3.9600.178242,363,39207-May-201515:46Not applicable
Shell32.dll6.3.9600.1782418,332,70407-May-201516:24Not applicable
Windows.systemtoast.explorer.lnkNot applicable1,45021-Aug-201323:43Not applicable
Windowsshell.manifestNot applicable67018-Jun-201314:54Not applicable

Additional file information

Additional file information for Windows 8.1 and for Windows Server 2012 R2
Additional files for all supported x86-based versions of Windows 8.1
File propertyValue
File nameX86_36de60437823c981883963eb558e0613_31bf3856ad364e35_6.3.9600.17824_none_19a75562f9713e90.manifest
File versionNot applicable
File size701
Date (UTC)09-May-2015
Time (UTC)00:04
PlatformNot applicable
File nameX86_f10ed4206f676be6178f1bb03f4a9dc5_31bf3856ad364e35_6.3.9600.17824_none_872a7f4cc90fa309.manifest
File versionNot applicable
File size695
Date (UTC)09-May-2015
Time (UTC)00:04
PlatformNot applicable
File nameX86_microsoft-windows-explorerframe_31bf3856ad364e35_6.3.9600.17824_none_575da0288f39dfd6.manifest
File versionNot applicable
File size70,453
Date (UTC)07-May-2015
Time (UTC)17:05
PlatformNot applicable
File nameX86_microsoft-windows-shell32_31bf3856ad364e35_6.3.9600.17824_none_0109c1a32d64e6bb.manifest
File versionNot applicable
File size1,349,346
Date (UTC)07-May-2015
Time (UTC)17:05
PlatformNot applicable
File nameWindowsshell.manifest
File versionNot applicable
File size670
Date (UTC)18-Jun-2013
Time (UTC)12:32
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2
File propertyValue
File nameAmd64_29017a3fb6c1184dc72f0f8297b3d2ea_31bf3856ad364e35_6.3.9600.17824_none_ffe9b50888423692.manifest
File versionNot applicable
File size699
Date (UTC)09-May-2015
Time (UTC)00:04
PlatformNot applicable
File nameAmd64_8accb1b8dc0003271f025b08866713b6_31bf3856ad364e35_6.3.9600.17824_none_f6a06a5a4937e6e7.manifest
File versionNot applicable
File size705
Date (UTC)09-May-2015
Time (UTC)00:04
PlatformNot applicable
File nameAmd64_a7da2019f9044bdb1902c94a2b09b819_31bf3856ad364e35_6.3.9600.17824_none_a60d56640506fd0b.manifest
File versionNot applicable
File size699
Date (UTC)09-May-2015
Time (UTC)00:04
PlatformNot applicable
File nameAmd64_e3aaf9c4a076fb5b00c4cc7bd24af23f_31bf3856ad364e35_6.3.9600.17824_none_91d3a6c1138dd56c.manifest
File versionNot applicable
File size705
Date (UTC)09-May-2015
Time (UTC)00:04
PlatformNot applicable
File nameAmd64_microsoft-windows-explorerframe_31bf3856ad364e35_6.3.9600.17824_none_b37c3bac4797510c.manifest
File versionNot applicable
File size70,457
Date (UTC)07-May-2015
Time (UTC)18:08
PlatformNot applicable
File nameAmd64_microsoft-windows-shell32_31bf3856ad364e35_6.3.9600.17824_none_5d285d26e5c257f1.manifest
File versionNot applicable
File size1,341,288
Date (UTC)07-May-2015
Time (UTC)18:08
PlatformNot applicable
File nameWow64_microsoft-windows-explorerframe_31bf3856ad364e35_6.3.9600.17824_none_bdd0e5fe7bf81307.manifest
File versionNot applicable
File size69,781
Date (UTC)07-May-2015
Time (UTC)17:04
PlatformNot applicable
File nameWow64_microsoft-windows-shell32_31bf3856ad364e35_6.3.9600.17824_none_677d07791a2319ec.manifest
File versionNot applicable
File size1,311,141
Date (UTC)07-May-2015
Time (UTC)17:04
PlatformNot applicable
File nameWindowsshell.manifest
File versionNot applicable
File size670
Date (UTC)18-Jun-2013
Time (UTC)15:00
PlatformNot applicable
Additional files for all supported Windows RT 8.1
File propertyValue
File nameArm_0c75fef199552401a80461850976afd6_31bf3856ad364e35_6.3.9600.17824_none_ca5d13b70270c7c5.manifest
File versionNot applicable
File size695
Date (UTC)09-May-2015
Time (UTC)00:04
PlatformNot applicable
File nameArm_7fa8c00fdd776f1fd37a7a1b069c6274_31bf3856ad364e35_6.3.9600.17824_none_2c8eac20b6e17d5a.manifest
File versionNot applicable
File size701
Date (UTC)09-May-2015
Time (UTC)00:04
PlatformNot applicable
File nameArm_microsoft-windows-explorerframe_31bf3856ad364e35_6.3.9600.17824_none_576012808f36fe9c.manifest
File versionNot applicable
File size70,453
Date (UTC)07-May-2015
Time (UTC)16:30
PlatformNot applicable
File nameArm_microsoft-windows-shell32_31bf3856ad364e35_6.3.9600.17824_none_010c33fb2d620581.manifest
File versionNot applicable
File size1,343,072
Date (UTC)07-May-2015
Time (UTC)16:30
PlatformNot applicable
File nameWindowsshell.manifest
File versionNot applicable
File size670
Date (UTC)18-Jun-2013
Time (UTC)14:54
PlatformNot applicable
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: 07/14/2015 18:11:00 - Revision: 2.0

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows RT 8.1

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