DetailPage-MSS-KB

Microsoft small business knowledge base

Article ID: 2578159 - Last Review: August 10, 2011 - Revision: 1.0

Hotfix Download Available
View and request hotfix downloads
 

On This Page

SYMPTOMS

When you log on to a computer that is running Windows Server 2008 R2 or Windows 7, the logon process stops responding and a blue swirl is shown on the Welcome screen indefinitely. After some time, the computer stops responding to any network-related commands. You must forcibly restart the computer to recover from this issue.

CAUSE

This issue occurs because of a race condition between the Windows Event Log service and the Event Tracing for Windows (ETW) tracing functions. When the race condition occurs, it causes a deadlock situation. This deadlock situation then causes the Winlogon.exe process to become unresponsive.

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 Web site:
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 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 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, 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 7 and for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. 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
Advapi32.dll6.1.7600.21005640,00009-Jul-201104:25x86
Advapi32.dll6.1.7601.21767640,51209-Jul-201105:51x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Advapi32.dll6.1.7600.21005877,56809-Jul-201105:20x64
Advapi32.dll6.1.7601.21767877,56809-Jul-201105:19x64
Advapi32.dll6.1.7600.21005640,00009-Jul-201104:25x86
Advapi32.dll6.1.7601.21767640,51209-Jul-201105:51x86
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Advapi32.dll6.1.7600.210051,564,16009-Jul-201104:08IA-64
Advapi32.dll6.1.7601.217671,564,16009-Jul-201104:09IA-64
Advapi32.dll6.1.7600.21005640,00009-Jul-201104:25x86
Advapi32.dll6.1.7601.21767640,51209-Jul-201105:51x86

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 nameUpdate.mum
File versionNot applicable
File size2,773
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameX86_54be792f02e5176aa26f2772dc3254ad_31bf3856ad364e35_6.1.7600.21005_none_d9472cbc787150d1.manifest
File versionNot applicable
File size696
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameX86_eda6c7d0c4c3297033ea83d4bcd2235b_31bf3856ad364e35_6.1.7601.21767_none_0407882094199602.manifest
File versionNot applicable
File size696
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameX86_microsoft-windows-advapi32_31bf3856ad364e35_6.1.7600.21005_none_e3fea59900b23368.manifest
File versionNot applicable
File size2,719
Date (UTC)09-Jul-2011
Time (UTC)04:59
PlatformNot applicable
File nameX86_microsoft-windows-advapi32_31bf3856ad364e35_6.1.7601.21767_none_e5a64b88fe074666.manifest
File versionNot applicable
File size2,719
Date (UTC)09-Jul-2011
Time (UTC)06:30
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_4e84f7adb9404bdb06c525a28d902d6f_31bf3856ad364e35_6.1.7601.21767_none_752d784f076a6a02.manifest
File versionNot applicable
File size1,040
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameAmd64_54be792f02e5176aa26f2772dc3254ad_31bf3856ad364e35_6.1.7600.21005_none_3565c84030cec207.manifest
File versionNot applicable
File size698
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameAmd64_e281a75c0abf10c3e022a603fbd79a17_31bf3856ad364e35_6.1.7601.21767_none_199e6fae6cb8aa13.manifest
File versionNot applicable
File size700
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameAmd64_eac7e178136559a6b971dd9c305c3442_31bf3856ad364e35_6.1.7600.21005_none_fee29e914a724d2b.manifest
File versionNot applicable
File size1,040
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameAmd64_eda6c7d0c4c3297033ea83d4bcd2235b_31bf3856ad364e35_6.1.7601.21767_none_602623a44c770738.manifest
File versionNot applicable
File size698
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameAmd64_f7472da8bb16d914856cc59b97bd5c50_31bf3856ad364e35_6.1.7600.21005_none_0b5b7aa664208b5b.manifest
File versionNot applicable
File size700
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameAmd64_microsoft-windows-advapi32_31bf3856ad364e35_6.1.7600.21005_none_401d411cb90fa49e.manifest
File versionNot applicable
File size2,723
Date (UTC)09-Jul-2011
Time (UTC)05:51
PlatformNot applicable
File nameAmd64_microsoft-windows-advapi32_31bf3856ad364e35_6.1.7601.21767_none_41c4e70cb664b79c.manifest
File versionNot applicable
File size2,723
Date (UTC)09-Jul-2011
Time (UTC)07:04
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size4,059
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameX86_microsoft-windows-advapi32_31bf3856ad364e35_6.1.7600.21005_none_e3fea59900b23368.manifest
File versionNot applicable
File size2,719
Date (UTC)09-Jul-2011
Time (UTC)04:59
PlatformNot applicable
File nameX86_microsoft-windows-advapi32_31bf3856ad364e35_6.1.7601.21767_none_e5a64b88fe074666.manifest
File versionNot applicable
File size2,719
Date (UTC)09-Jul-2011
Time (UTC)06:30
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_0adb81a98663f1418af302dbd79824c8_31bf3856ad364e35_6.1.7601.21767_none_44a1f82e9a49e3c3.manifest
File versionNot applicable
File size698
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameIa64_54be792f02e5176aa26f2772dc3254ad_31bf3856ad364e35_6.1.7600.21005_none_d948d0b2786f59cd.manifest
File versionNot applicable
File size697
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameIa64_a4ac7a4a2c6c735b706b87e7aab4140c_31bf3856ad364e35_6.1.7600.21005_none_56244ab96e521284.manifest
File versionNot applicable
File size698
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameIa64_eda6c7d0c4c3297033ea83d4bcd2235b_31bf3856ad364e35_6.1.7601.21767_none_04092c1694179efe.manifest
File versionNot applicable
File size697
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameIa64_microsoft-windows-advapi32_31bf3856ad364e35_6.1.7600.21005_none_e400498f00b03c64.manifest
File versionNot applicable
File size2,721
Date (UTC)09-Jul-2011
Time (UTC)05:49
PlatformNot applicable
File nameIa64_microsoft-windows-advapi32_31bf3856ad364e35_6.1.7601.21767_none_e5a7ef7efe054f62.manifest
File versionNot applicable
File size2,721
Date (UTC)09-Jul-2011
Time (UTC)06:58
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,169
Date (UTC)11-Jul-2011
Time (UTC)18:30
PlatformNot applicable
File nameX86_microsoft-windows-advapi32_31bf3856ad364e35_6.1.7600.21005_none_e3fea59900b23368.manifest
File versionNot applicable
File size2,719
Date (UTC)09-Jul-2011
Time (UTC)04:59
PlatformNot applicable
File nameX86_microsoft-windows-advapi32_31bf3856ad364e35_6.1.7601.21767_none_e5a64b88fe074666.manifest
File versionNot applicable
File size2,719
Date (UTC)09-Jul-2011
Time (UTC)06:30
PlatformNot applicable

APPLIES TO
  • 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
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Starter
  • Windows 7 Ultimate
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbexpertiseadvanced kbsurveynew KB2578159
Share
Additional support options
Ask The Microsoft Small Business Support Community
Contact Microsoft Small Business Support
Find Microsoft Small Business Support Certified Partner
Find a Microsoft Store For In-Person Small Business Support