Symptoms

Assume that you try to run an application in a RemoteApp environment in which a child window is running in a separate thread in Windows 8 or Windows Server 2012. Sometimes, the child window becomes blank if the application calls the RedrawWindow function.

Note When you try to resize, minimize, or maximize the window, or you hover over the window elements, this issue can be worked around.

How to obtain this update or hotfix

To resolve this issue, we have released hotfixes for Windows 8 and Windows Server 2012, and released updates for Windows 8 and Windows Server 2012 .

The update rollup fixes many other issues in addition to the issue that the hotfix fixes. We recommend that you use the update rollup. The update rollup is larger than the hotfix. Therefore, the update rollup takes longer to download.

Update for Windows 8 or Windows Server 2012

The following update rollup is available.

For Windows 8 or Windows Server 2012

Get update rollup 2975331

Hotfix for Windows 8 or Windows Server 2012

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=supportNote 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

There are no prerequisites for installing this hotfix.

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

More Information

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates.

The global 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 8 and Windows Server 2012 file information and notesImportant Windows 8 hotfixes and Windows Server 2012 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 8/Windows Server 2012" 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, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.2.920 0.21xxx

    Windows 8 and Windows Server 2012

    RTM

    GDR

  • 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

File name

File version

File size

Date

Time

Platform

Win32k.ptxml

Not applicable

4,172

25-Jul-2012

20:33

Not applicable

Win32k.sys

6.2.9200.21165

3,377,664

04-Jul-2014

05:12

x86

For all supported x64-based versions of Windows 8 and of Windows Server 2012

File name

File version

File size

Date

Time

Platform

Win32k.ptxml

Not applicable

4,172

25-Jul-2012

20:29

Not applicable

Win32k.sys

6.2.9200.21165

4,037,632

04-Jul-2014

05:57

x64

Wow64_win32k.ptxml

Not applicable

4,172

12-Feb-2013

00:09

Not applicable

Additional file information

Additional file information for Windows 8 and for Windows Server 2012

Additional files for all supported x86-based versions of Windows 8

File property

Value

File name

X86_43320adfb2895a11acc73deb61f59ed2_31bf3856ad364e35_6.2.9200.21165_none_a8d6429bba2731af.manifest

File version

Not applicable

File size

694

Date (UTC)

04-Jul-2014

Time (UTC)

20:15

Platform

Not applicable

File name

X86_microsoft-windows-win32k_31bf3856ad364e35_6.2.9200.21165_none_b63ea60e84fa31ec.manifest

File version

Not applicable

File size

104,628

Date (UTC)

04-Jul-2014

Time (UTC)

06:46

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 8 and of Windows Server 2012

File property

Value

File name

Amd64_c4b5988f980ac38cc76be07b815c719b_31bf3856ad364e35_6.2.9200.21165_none_39898d079339ae73.manifest

File version

Not applicable

File size

698

Date (UTC)

04-Jul-2014

Time (UTC)

20:16

Platform

Not applicable

File name

Amd64_ce6edbe696db04ce504a9fc919bbf365_31bf3856ad364e35_6.2.9200.21165_none_c140dd0c8c1063f5.manifest

File version

Not applicable

File size

698

Date (UTC)

04-Jul-2014

Time (UTC)

20:16

Platform

Not applicable

File name

Amd64_fbeea00940c14b479a80e3fe2fd3031d_31bf3856ad364e35_6.2.9200.21165_none_a68ab849b0aca120.manifest

File version

Not applicable

File size

1,038

Date (UTC)

04-Jul-2014

Time (UTC)

20:16

Platform

Not applicable

File name

Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.2.9200.21165_none_125d41923d57a322.manifest

File version

Not applicable

File size

104,632

Date (UTC)

04-Jul-2014

Time (UTC)

08:54

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.2.9200.21165_none_1cb1ebe471b8651d.manifest

File version

Not applicable

File size

103,899

Date (UTC)

04-Jul-2014

Time (UTC)

06:46

Platform

Not applicable


Status

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

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