DetailPage-MSS-KB

Microsoft small business knowledge base

Article ID: 2502285 - Last Review: May 1, 2013 - Revision: 8.0

On This Page

Symptoms

Consider the following scenario:
  • You run an active antivirus application on a computer that is running Windows 7.
  • You install Windows 7 Service Pack 1 (SP1) on the computer.
  • You restart the computer.
In this scenario, you may receive a Stop error message that resembles the following:
STOP: 0x0000007F (0x0000008, parameter2, parameter3, parameter4)
UNEXPECTED_KERNEL_MODE_TRAP
Notes
  • The parameters that are after the "0x0000008" parameter in this Stop error message vary, depending on the configuration of the computer.
  • Not all "0x0000007F" Stop errors are caused by this issue.

Cause

This issue occurs because both the operating system and the antivirus application read from the same files in the startup process of the operating system. Therefore, kernel stack memory may be exhausted, and you receive the Stop error message that is mentioned in the "Symptoms" section.

Note After you install an update that updates certain system files on the computer, the operating system tries to verify the digital signatures on all new files.

More information

Update information

To resolve this issue, you must install this update before you install Windows 7 Service Pack 1 (SP1).

If you have installed Windows 7 SP1, uninstall Windows 7 SP1, and then apply this update. For more information about how to uninstall Windows 7 SP1, visit the following Microsoft website:
http://windows.microsoft.com/uninstallwindows7sp1 (http://windows.microsoft.com/uninstallwindows7sp1 )

How to obtain this update

This update is available from the Microsoft Update website:
http://update.microsoft.com (http://update.microsoft.com)

Prerequisites

To apply this update, you must be running Windows 7.


Registry information

To use the update 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 update.

Update replacement information

This update does not replace a previously released update.

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 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 0.16xxxWindows 7RTMGDR
    6.1.760 0.20xxxWindows 7RTMLDR
    6.1.760 1.17xxxWindows 7SP1GDR
    6.1.760 1.21xxxWindows 7SP1LDR
  • GDR service branches contain only those fixes that are widely released to address widespread, extremely important 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 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
Cdd.dll6.1.7600.16699107,52002-Nov-201004:23x86
Dxgkrnl.sys6.1.7600.16699728,44802-Nov-201004:46x86
Dxgmms1.sys6.1.7600.16748219,00826-Jan-201106:11x86
Lddmcore.ptxmlNot applicable1,15101-Nov-201023:04Not applicable
Cdd.dll6.1.7600.20888107,52026-Jan-201105:44x86
Dxgkrnl.sys6.1.7600.20888728,44826-Jan-201106:01x86
Dxgmms1.sys6.1.7600.20888219,00826-Jan-201106:01x86
Lddmcore.ptxmlNot applicable1,15113-Jul-200920:32Not applicable
Cdd.dll6.1.7601.17514107,52020-Nov-201011:56x86
Dxgkrnl.sys6.1.7601.17514728,44820-Nov-201012:29x86
Dxgmms1.sys6.1.7601.17550219,00826-Jan-201106:13x86
Lddmcore.ptxmlNot applicable1,15113-Jul-200920:32Not applicable
Cdd.dll6.1.7601.17514107,52020-Nov-201011:56x86
Dxgkrnl.sys6.1.7601.21649728,44826-Jan-201105:59x86
Dxgmms1.sys6.1.7601.21649219,00826-Jan-201105:59x86
Lddmcore.ptxmlNot applicable1,15113-Jul-200920:32Not applicable
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 for Windows 7

Additional files for all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameUpdate.mum
File versionNot applicable
File size2,301
Date (UTC)27-Jan-2011
Time (UTC)04:10
PlatformNot applicable
File nameX86_212d89d3bdcc35a7072bed4a9ac853f4_31bf3856ad364e35_6.1.7600.20888_none_9e9a2e68d3a02ec8.manifest
File versionNot applicable
File size696
Date (UTC)27-Jan-2011
Time (UTC)04:10
PlatformNot applicable
File nameX86_9fb38cab40768a065387e4b1808f8e44_31bf3856ad364e35_6.1.7600.16748_none_50b15ab988a1169b.manifest
File versionNot applicable
File size696
Date (UTC)27-Jan-2011
Time (UTC)04:10
PlatformNot applicable
File nameX86_a82e0eb1064b7ad92694b33d35d9fc34_31bf3856ad364e35_6.1.7601.17550_none_f43cf713b19b810d.manifest
File versionNot applicable
File size696
Date (UTC)27-Jan-2011
Time (UTC)04:10
PlatformNot applicable
File nameX86_e62267b1a90d9eef564c393f92444a29_31bf3856ad364e35_6.1.7601.21649_none_e8d80f23d988e1ea.manifest
File versionNot applicable
File size696
Date (UTC)27-Jan-2011
Time (UTC)04:10
PlatformNot applicable
File nameX86_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7600.16748_none_abcd36e844bd2bca.manifest
File versionNot applicable
File size13,305
Date (UTC)27-Jan-2011
Time (UTC)04:14
PlatformNot applicable
File nameX86_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7600.20888_none_ac2b94035dfb3b58.manifest
File versionNot applicable
File size13,193
Date (UTC)26-Jan-2011
Time (UTC)06:20
PlatformNot applicable
File nameX86_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7601.17550_none_ada0c1b241f2e8ef.manifest
File versionNot applicable
File size13,305
Date (UTC)27-Jan-2011
Time (UTC)04:14
PlatformNot applicable
File nameX86_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7601.21649_none_ae3e31035b0050d7.manifest
File versionNot applicable
File size13,305
Date (UTC)27-Jan-2011
Time (UTC)04:14
PlatformNot applicable

Applies to
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Ultimate
  • Windows 7 Starter
Keywords: 
kbqfe kbfix atdownload kbsurveynew kbexpertiseinter KB2502285
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