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Symptoms

Assume that you configure multiple monitors on a Windows 7-based or Windows Server 2008 R2-based computer that has multiple display adapters installed. In this situation, the configurations that you made to the layout and position of the monitors are not retained after you restart the computer.

Resolution

Hotfix information

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 Web site:

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

To apply this hotfix, you must be running one of the following operating systems

  • Windows 7

  • Windows 7 Service Pack 1 (SP1)

  • Windows Server 2008 R2

  • Windows Server 2008 R2 Service Pack 1 (SP1)

For more information about how to obtain a Windows 7 or a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

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.

File information

The Global (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 notes


Important 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
    0.
    16xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    GDR

    6.1.760
    0.
    20xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    LDR

    6.1.760
    1.
    17xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    GDR

    6.1.760
    1.
    21xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • 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 Server 2008 R2 and for Windows 7" 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

Cdd.dll

6.1.7600.20899

107,520

09-Feb-2011

06:33

Dxgkrnl.sys

6.1.7600.20899

729,472

09-Feb-2011

06:50

Dxgmms1.sys

6.1.7600.20899

219,008

09-Feb-2011

06:50

Lddmcore.ptxml

Not applicable

1,151

13-Jul-2009

20:32

Cdd.dll

6.1.7601.17514

107,520

20-Nov-2010

11:56

Dxgkrnl.sys

6.1.7601.21657

729,472

09-Feb-2011

08:01

Dxgmms1.sys

6.1.7601.21657

219,008

09-Feb-2011

08:01

Lddmcore.ptxml

Not applicable

1,151

13-Jul-2009

20:32

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

File name

File version

File size

Date

Time

Cdd.dll

6.1.7600.20899

144,384

09-Feb-2011

05:59

Dxgkrnl.sys

6.1.7600.20899

983,936

09-Feb-2011

06:21

Dxgmms1.sys

6.1.7600.20899

265,088

09-Feb-2011

06:21

Lddmcore.ptxml

Not applicable

1,151

13-Jul-2009

20:25

Cdd.dll

6.1.7601.17514

144,384

20-Nov-2010

12:55

Dxgkrnl.sys

6.1.7601.21657

983,936

09-Feb-2011

07:58

Dxgmms1.sys

6.1.7601.21657

265,088

09-Feb-2011

07:58

Lddmcore.ptxml

Not applicable

1,151

13-Jul-2009

20:25

For all supported ia64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Cdd.dll

6.1.7600.20899

347,136

09-Feb-2011

04:57

Dxgkrnl.sys

6.1.7600.20899

2,504,064

09-Feb-2011

05:21

Dxgmms1.sys

6.1.7600.20899

669,568

09-Feb-2011

05:21

Lddmcore.ptxml

Not applicable

1,151

13-Jul-2009

20:25

Cdd.dll

6.1.7601.17514

347,136

20-Nov-2010

10:06

Dxgkrnl.sys

6.1.7601.21657

2,504,064

09-Feb-2011

05:24

Dxgmms1.sys

6.1.7601.21657

669,568

09-Feb-2011

05:24

Lddmcore.ptxml

Not applicable

1,151

13-Jul-2009

20:25

Status

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

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

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_c344e735e76ead8bc25e986336633aa2_31bf3856ad364e35_6.1.7600.20899_none_3424584efd561be3.manifest

File version

Not applicable

File size

696

Date (UTC)

09-Feb-2011

Time (UTC)

15:58

File name

X86_db47844c0446d43d0b72473e05a460a7_31bf3856ad364e35_6.1.7601.21657_none_b532184f95f0aab6.manifest

File version

Not applicable

File size

696

Date (UTC)

09-Feb-2011

Time (UTC)

15:58

File name

X86_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7600.20899_none_ac21c4615e0270a0.manifest

File version

Not applicable

File size

13,193

Date (UTC)

09-Feb-2011

Time (UTC)

07:24

File name

X86_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7601.21657_none_ae3160835b0a3a1a.manifest

File version

Not applicable

File size

13,305

Date (UTC)

09-Feb-2011

Time (UTC)

16:01

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

File name

Amd64_a0b6d335049088928a241cf16874f8b5_31bf3856ad364e35_6.1.7601.21657_none_8ce593bb5abe61a3.manifest

File version

Not applicable

File size

700

Date (UTC)

09-Feb-2011

Time (UTC)

15:58

File name

Amd64_f554439e62146f66f3c6f8edcfbc090e_31bf3856ad364e35_6.1.7600.20899_none_e8693a3d6d0f7cfe.manifest

File version

Not applicable

File size

700

Date (UTC)

09-Feb-2011

Time (UTC)

15:58

File name

Amd64_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7600.20899_none_08405fe5165fe1d6.manifest

File version

Not applicable

File size

13,197

Date (UTC)

09-Feb-2011

Time (UTC)

08:02

File name

Amd64_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7601.21657_none_0a4ffc071367ab50.manifest

File version

Not applicable

File size

13,309

Date (UTC)

09-Feb-2011

Time (UTC)

16:04

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

File name

Ia64_0a7977ab137aa9f43b9df966e1cdb72d_31bf3856ad364e35_6.1.7600.20899_none_b001e480d2265cf6.manifest

File version

Not applicable

File size

698

Date (UTC)

09-Feb-2011

Time (UTC)

15:58

File name

Ia64_760c0b9673686658b92e3a56fcde2ad9_31bf3856ad364e35_6.1.7601.21657_none_5018e5d6a3566ea2.manifest

File version

Not applicable

File size

698

Date (UTC)

09-Feb-2011

Time (UTC)

15:58

File name

Ia64_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7600.20899_none_ac2368575e00799c.manifest

File version

Not applicable

File size

13,195

Date (UTC)

09-Feb-2011

Time (UTC)

08:06

File name

Ia64_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7601.21657_none_ae3304795b084316.manifest

File version

Not applicable

File size

13,307

Date (UTC)

09-Feb-2011

Time (UTC)

15:58

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