This article describes an issue that occurs when you close a window in Windows 8.1 or Windows Server 2012 R2. A hotfix is available to resolve this issue. The hotfix has a prerequisite.

Symptoms

When you use VMWare Horizon View Client, the Desktop Windows Manager (Dwm.exe) process crashes if you close a window. This issue occurs only when the "Animate windows when minimizing and maximizing" option is selected. To locate this option, open the System item in Control Panel, click Advanced system settings, click Settings in the Performance area, and then locate the option under the Visual Effects tab.

Note When Dwm.exe crashes, the screen may flicker because Dwm.exe is reloaded.

Cause

This issue occurs because of a defect in Dwm.exe that causes the process to incorrectly show the visual effect of closing the window.

Resolution

To resolve this issue, we have released an update rollup and a hotfix for Windows 8.1 or Windows Server 2012 R2.

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.

Get the update rollup for Windows 8.1 or Windows Server 2012 R2To resolve this issue, install the update rollup that is dated November 2014.

Get the November 2014 update rollup for Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2

Get the hotfix for Windows 8.1 or Windows Server 2012 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=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.

PrerequisitesTo apply this update, you must have update 2919355 installed in Windows 8.1 or Windows Server 2012 R2.

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

Restart requirementYou may have to restart the computer after you apply this hotfix.

Hotfix replacement informationThis hotfix does not replace a previously released hotfix.

More Information

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 8.1 and Windows Server 2012 R2 file information and notes

Important Windows 8.1 hotfixes and Windows Server 2012 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 8.1/Windows Server 2012 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, 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

    6.3.960 0.17 xxx

    Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2

    RTM

    GDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical 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" 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 name

File version

File size

Date

Time

Platform

Dwmcore.dll

6.3.9600.17383

1,944,576

25-Sep-2014

00:49

x86

Microsoft-windows-desktopwindowmanager-compositor.ptxml

Not applicable

4,069

21-Aug-2013

23:39

Not applicable

D3d11.dll

6.3.9600.17383

1,931,704

25-Sep-2014

02:45

x86

Dxgi.dll

6.3.9600.17383

429,672

25-Sep-2014

02:45

x86

Cdd.dll

6.3.9600.17383

176,640

25-Sep-2014

02:39

x86

Dxgkrnl.sys

6.3.9600.17383

1,329,984

25-Sep-2014

02:45

x86

Dxgmms1.sys

6.3.9600.17383

319,808

25-Sep-2014

02:45

x86

Lddmcore.ptxml

Not applicable

7,208

06-Mar-2014

01:37

Not applicable

For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Dwmcore.dll

6.3.9600.17383

2,259,968

25-Sep-2014

01:15

x64

Microsoft-windows-desktopwindowmanager-compositor.ptxml

Not applicable

4,069

22-Aug-2013

06:44

Not applicable

D3d11.dll

6.3.9600.17383

2,317,512

25-Sep-2014

03:41

x64

Dxgi.dll

6.3.9600.17383

544,416

25-Sep-2014

03:41

x64

Cdd.dll

6.3.9600.17383

206,336

25-Sep-2014

03:35

x64

Dxgkrnl.sys

6.3.9600.17383

1,543,488

25-Sep-2014

03:41

x64

Dxgmms1.sys

6.3.9600.17383

389,952

25-Sep-2014

03:41

x64

Lddmcore.ptxml

Not applicable

7,208

06-Mar-2014

01:36

Not applicable

Dwmcore.dll

6.3.9600.17383

1,944,576

25-Sep-2014

00:49

x86

Microsoft-windows-desktopwindowmanager-compositor.ptxml

Not applicable

4,069

21-Aug-2013

23:39

Not applicable

D3d11.dll

6.3.9600.17383

1,931,704

25-Sep-2014

02:45

x86

Dxgi.dll

6.3.9600.17383

429,672

25-Sep-2014

02:45

x86

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 property

Value

File name

X86_18ea962d34bc597afc5e9ec650f3a4ab_31bf3856ad364e35_6.3.9600.17383_none_b048237ae2c2c419.manifest

File version

Not applicable

File size

1,050

Date (UTC)

26-Sep-2014

Time (UTC)

01:21

Platform

Not applicable

File name

X86_993feeccbf3b04dfc9f857122e00d5ed_31bf3856ad364e35_6.3.9600.17383_none_9abddc27812be4c3.manifest

File version

Not applicable

File size

1,753

Date (UTC)

26-Sep-2014

Time (UTC)

01:21

Platform

Not applicable

File name

X86_b4f114ac76f3168d0adde318e0f571da_31bf3856ad364e35_6.3.9600.17383_none_fcff8295816bc101.manifest

File version

Not applicable

File size

696

Date (UTC)

26-Sep-2014

Time (UTC)

01:21

Platform

Not applicable

File name

X86_microsoft-windows-d..wmanager-compositor_31bf3856ad364e35_6.3.9600.17383_none_9a21006c5af88405.manifest

File version

Not applicable

File size

155,726

Date (UTC)

25-Sep-2014

Time (UTC)

02:52

Platform

Not applicable

File name

X86_microsoft-windows-directx-direct3d11_31bf3856ad364e35_6.3.9600.17383_none_8456fc4be946acea.manifest

File version

Not applicable

File size

714,881

Date (UTC)

25-Sep-2014

Time (UTC)

02:52

Platform

Not applicable

File name

X86_microsoft-windows-directx-dxgi_31bf3856ad364e35_6.3.9600.17383_none_cf1d25c83a274f50.manifest

File version

Not applicable

File size

112,634

Date (UTC)

25-Sep-2014

Time (UTC)

02:52

Platform

Not applicable

File name

X86_microsoft-windows-lddmcore_31bf3856ad364e35_6.3.9600.17383_none_40674613ff275b04.manifest

File version

Not applicable

File size

385,241

Date (UTC)

25-Sep-2014

Time (UTC)

02:52

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File property

Value

File name

Amd64_02bc26c32011f1252707f397f994174d_31bf3856ad364e35_6.3.9600.17383_none_140ae8a92a27ed49.manifest

File version

Not applicable

File size

1,056

Date (UTC)

26-Sep-2014

Time (UTC)

01:30

Platform

Not applicable

File name

Amd64_18ea962d34bc597afc5e9ec650f3a4ab_31bf3856ad364e35_6.3.9600.17383_none_0c66befe9b20354f.manifest

File version

Not applicable

File size

1,052

Date (UTC)

26-Sep-2014

Time (UTC)

01:30

Platform

Not applicable

File name

Amd64_8be114641d64c56beb57bc199db76bee_31bf3856ad364e35_6.3.9600.17383_none_6e10d702fbce48af.manifest

File version

Not applicable

File size

1,086

Date (UTC)

26-Sep-2014

Time (UTC)

01:30

Platform

Not applicable

File name

Amd64_c0b597c24770527ad345860c43c4ee6a_31bf3856ad364e35_6.3.9600.17383_none_52dacf150f3c8b9d.manifest

File version

Not applicable

File size

700

Date (UTC)

26-Sep-2014

Time (UTC)

01:30

Platform

Not applicable

File name

Amd64_microsoft-windows-d..wmanager-compositor_31bf3856ad364e35_6.3.9600.17383_none_f63f9bf01355f53b.manifest

File version

Not applicable

File size

155,730

Date (UTC)

25-Sep-2014

Time (UTC)

03:46

Platform

Not applicable

File name

Amd64_microsoft-windows-directx-direct3d11_31bf3856ad364e35_6.3.9600.17383_none_e07597cfa1a41e20.manifest

File version

Not applicable

File size

714,883

Date (UTC)

25-Sep-2014

Time (UTC)

03:46

Platform

Not applicable

File name

Amd64_microsoft-windows-directx-dxgi_31bf3856ad364e35_6.3.9600.17383_none_2b3bc14bf284c086.manifest

File version

Not applicable

File size

112,636

Date (UTC)

25-Sep-2014

Time (UTC)

03:46

Platform

Not applicable

File name

Amd64_microsoft-windows-lddmcore_31bf3856ad364e35_6.3.9600.17383_none_9c85e197b784cc3a.manifest

File version

Not applicable

File size

385,245

Date (UTC)

25-Sep-2014

Time (UTC)

03:46

Platform

Not applicable

File name

X86_microsoft-windows-d..wmanager-compositor_31bf3856ad364e35_6.3.9600.17383_none_9a21006c5af88405.manifest

File version

Not applicable

File size

155,726

Date (UTC)

25-Sep-2014

Time (UTC)

02:52

Platform

Not applicable

File name

X86_microsoft-windows-directx-direct3d11_31bf3856ad364e35_6.3.9600.17383_none_8456fc4be946acea.manifest

File version

Not applicable

File size

714,881

Date (UTC)

25-Sep-2014

Time (UTC)

02:52

Platform

Not applicable

File name

X86_microsoft-windows-directx-dxgi_31bf3856ad364e35_6.3.9600.17383_none_cf1d25c83a274f50.manifest

File version

Not applicable

File size

112,634

Date (UTC)

25-Sep-2014

Time (UTC)

02:52

Platform

Not applicable




The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.


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 that Microsoft uses to describe software updates.

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