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Article ID: 2645611 - Last Review: January 11, 2012 - Revision: 1.0

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SYMPTOMS

Consider the following scenario:
  • You connect multiple monitors to a computer that is running Windows 7 or Windows Server 2008 R2.
  • You log on and then lock the computer.
  • You log on the computer by using a remote session from another computer.
  • You close the remote session without logging off.
  • You try to log on the computer locally.
In this situation, the computer stops responding, and the monitor displays a black screen.

Note To recover from this issue, you have to 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 the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

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, contact 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 (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 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 Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932  (http://support.microsoft.com/kb/976932/ ) Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply 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 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
  • 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:
    Collapse this tableExpand this table
    VersionProductMilestoneService branch
    6.1.760 0.21xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1.21xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • 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
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Win32k.sys6.1.7600.211002,350,08030-Nov-201103:34x86
Win32k.sys6.1.7601.218692,350,59230-Nov-201103:27x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Win32k.sys6.1.7600.211003,146,75230-Nov-201104:15x64
Win32k.sys6.1.7601.218693,147,26430-Nov-201103:55x64
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Win32k.sys6.1.7600.211007,447,55230-Nov-201103:29IA-64
Win32k.sys6.1.7601.218697,440,89630-Nov-201103:24IA-64

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  (http://support.microsoft.com/kb/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
Collapse this tableExpand this table
File nameX86_ea62e34e6136d325abc8af1379a830ca_31bf3856ad364e35_6.1.7600.21100_none_242cf55c2ecfc26d.manifest
File versionNot Applicable
File size694
Date (UTC)30-Nov-2011
Time (UTC)11:33
File nameX86_f970db537e5e432ddbdddbf53bd6161f_31bf3856ad364e35_6.1.7601.21869_none_a98d4dece7216b79.manifest
File versionNot Applicable
File size694
Date (UTC)30-Nov-2011
Time (UTC)11:33
File nameX86_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21100_none_b9a4ce1d14bbc2ec.manifest
File versionNot Applicable
File size42,086
Date (UTC)30-Nov-2011
Time (UTC)06:31
File nameX86_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21869_none_bb537613120a874b.manifest
File versionNot Applicable
File size42,086
Date (UTC)30-Nov-2011
Time (UTC)06:19
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_222c9f60a2661b2b2e7ef5fce9d5712c_31bf3856ad364e35_6.1.7600.21100_none_1cb69d45d4b18554.manifest
File versionNot Applicable
File size698
Date (UTC)30-Nov-2011
Time (UTC)11:33
File nameAmd64_51df461d5f8d5702872f7a42af7e878c_31bf3856ad364e35_6.1.7600.21100_none_308ea1b4fcf13d3f.manifest
File versionNot Applicable
File size698
Date (UTC)30-Nov-2011
Time (UTC)11:33
File nameAmd64_5863680b8d27b2fcbc62b1ab7b701641_31bf3856ad364e35_6.1.7601.21869_none_329b730b69cedf35.manifest
File versionNot Applicable
File size698
Date (UTC)30-Nov-2011
Time (UTC)11:33
File nameAmd64_73cbece249924b72f6ce7d2803fa7bfc_31bf3856ad364e35_6.1.7601.21869_none_28d6f9f43e4c5e5a.manifest
File versionNot Applicable
File size698
Date (UTC)30-Nov-2011
Time (UTC)11:33
File nameAmd64_8c496c1f09baa3a111e32620eda1fe2d_31bf3856ad364e35_6.1.7600.21100_none_61cec3b65fd50d57.manifest
File versionNot Applicable
File size1,038
Date (UTC)30-Nov-2011
Time (UTC)11:33
File nameAmd64_a76e24380814ffa575949f7953fc5130_31bf3856ad364e35_6.1.7601.21869_none_59b4093805d09323.manifest
File versionNot Applicable
File size1,038
Date (UTC)30-Nov-2011
Time (UTC)11:33
File nameAmd64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21100_none_15c369a0cd193422.manifest
File versionNot Applicable
File size42,090
Date (UTC)30-Nov-2011
Time (UTC)07:18
File nameAmd64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21869_none_17721196ca67f881.manifest
File versionNot Applicable
File size42,090
Date (UTC)30-Nov-2011
Time (UTC)07:03
File nameWow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21100_none_201813f30179f61d.manifest
File versionNot Applicable
File size4,178
Date (UTC)30-Nov-2011
Time (UTC)05:58
File nameWow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21869_none_21c6bbe8fec8ba7c.manifest
File versionNot Applicable
File size4,178
Date (UTC)30-Nov-2011
Time (UTC)05:53
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_59c2637c86bb58fee7f3e68bff1d9d45_31bf3856ad364e35_6.1.7601.21869_none_9171590e915127a1.manifest
File versionNot Applicable
File size1,036
Date (UTC)30-Nov-2011
Time (UTC)11:33
File nameIa64_a34b007b313e0c14e11ac7f1e7c711f8_31bf3856ad364e35_6.1.7600.21100_none_cca6b4543c55343b.manifest
File versionNot Applicable
File size1,036
Date (UTC)30-Nov-2011
Time (UTC)11:33
File nameIa64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21100_none_b9a6721314b9cbe8.manifest
File versionNot Applicable
File size42,088
Date (UTC)30-Nov-2011
Time (UTC)06:55
File nameIa64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21869_none_bb551a0912089047.manifest
File versionNot Applicable
File size42,088
Date (UTC)30-Nov-2011
Time (UTC)06:42
File nameWow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21100_none_201813f30179f61d.manifest
File versionNot Applicable
File size4,178
Date (UTC)30-Nov-2011
Time (UTC)05:58
File nameWow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21869_none_21c6bbe8fec8ba7c.manifest
File versionNot Applicable
File size4,178
Date (UTC)30-Nov-2011
Time (UTC)05:53

APPLIES TO
  • 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 for Itanium-Based Systems
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Standard
  • Windows Web Server 2008 R2
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2645611
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