An app bar may unintentionally obscure items on the Windows task bar in Windows

Applies To
Windows 8.1 Enterprise Windows 8.1 Pro Windows 8.1 Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows Server 2012 R2 Standard Windows 7 Enterprise Windows 7 Home Basic Windows 7 Home Premium Windows 7 Professional Windows 7 Starter Windows 7 Ultimate Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Foundation Windows Server 2008 R2 Standard

Symptoms

You run a custom application on a computer that is running Windows 8.1, Windows Server 2012 R2, Windows 7, or Windows Server 2008 R2. If the app bar for the application is docked immediately above the Windows task bar, the app bar may unintentionally obscure items on the Windows task bar such as jump lists (shortcuts) and preview panes.

Resolution

To resolve this issue in Windows 8.1 and Windows Server 2012 R2, install update 2919355.
To resolve this issue in Windows 7 and Windows Server 2008 R2, install the hotfix that is described in this article.

Update information for Windows 8.1 and Windows Server 2012 R2

For more information about how to obtain update 2919355, click the following article number to view the article in the Microsoft Knowledge Base:

2919355 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 Update April, 2014

Hotfix information for Windows 7 and Windows Server 2008 R2

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:

http:⁠//support.microsoft.com/contactus/?ws=support Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running Service Pack 1 for Windows 7 or Windows Server 2008 R2.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.

File information

The English (United States) version of this hotfix 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 7 and Windows Server 2008 R2 file information notesImportant Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version Product SR_Level Service branch
    6.1.760
    1.
    22xxx
    Windows 7 and Windows Server 2008 R2 SP1 LDR
  • GDR service branches contain only those fixes that are widely released to address widespread, extremely important issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 7 and Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely 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 7

File name File version File size Date Time Platform
Explorer-ppdlic.xrm-ms Not applicable 3,065 09-Jul-2013 14:19 Not applicable
Explorer.exe 6.1.7601.22380 2,615,808 09-Jul-2013 12:42 x86

For all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File name File version File size Date Time Platform
Explorer-ppdlic.xrm-ms Not applicable 3,065 09-Jul-2013 15:11 Not applicable
Explorer.exe 6.1.7601.22380 2,870,784 09-Jul-2013 13:13 x64

For all supported IA-64-based versions of Windows Server 2008 R2

File name File version File size Date Time Platform
Explorer-ppdlic.xrm-ms Not applicable 3,065 09-Jul-2013 14:11 Not applicable
Explorer.exe 6.1.7601.22380 4,213,248 09-Jul-2013 12:39 IA-64

      

Status

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

References

See the terminology Microsoft uses to describe software updates .

Additional file information

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7

File name X86_microsoft-windows-explorer_31bf3856ad364e35_6.1.7601.22380_none_53f5e0b2f158a7fb.manifest
File version Not applicable
File size 98,185
Date (UTC) 09-Jul-2013
Time (UTC) 14:27
Platform Not applicable

Additional files for all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File name Amd64_microsoft-windows-explorer_31bf3856ad364e35_6.1.7601.22380_none_b0147c36a9b61931.manifest
File version Not applicable
File size 98,189
Date (UTC) 09-Jul-2013
Time (UTC) 15:18
Platform Not applicable
File name Wow64_microsoft-windows-explorer_31bf3856ad364e35_6.1.7601.22380_none_ba692688de16db2c.manifest
File version Not applicable
File size 97,119
Date (UTC) 09-Jul-2013
Time (UTC) 14:17
Platform Not applicable

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name Ia64_microsoft-windows-explorer_31bf3856ad364e35_6.1.7601.22380_none_53f784a8f156b0f7.manifest
File version Not applicable
File size 98,187
Date (UTC) 09-Jul-2013
Time (UTC) 14:19
Platform Not applicable
File name Wow64_microsoft-windows-explorer_31bf3856ad364e35_6.1.7601.22380_none_ba692688de16db2c.manifest
File version Not applicable
File size 97,119
Date (UTC) 09-Jul-2013
Time (UTC) 14:17
Platform Not applicable