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
How to obtain this update
This update is available from the Microsoft Update website:
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:
Version
Product
Milestone
Service branch
6.1.760 0.16xxx
Windows 7
RTM
GDR
6.1.760 0.20xxx
Windows 7
RTM
LDR
6.1.760 1.17xxx
Windows 7
SP1
GDR
6.1.760 1.21xxx
Windows 7
SP1
LDR
-
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
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Cdd.dll |
6.1.7600.16699 |
107,520 |
02-Nov-2010 |
04:23 |
x86 |
|
Dxgkrnl.sys |
6.1.7600.16699 |
728,448 |
02-Nov-2010 |
04:46 |
x86 |
|
Dxgmms1.sys |
6.1.7600.16748 |
219,008 |
26-Jan-2011 |
06:11 |
x86 |
|
Lddmcore.ptxml |
Not applicable |
1,151 |
01-Nov-2010 |
23:04 |
Not applicable |
|
Cdd.dll |
6.1.7600.20888 |
107,520 |
26-Jan-2011 |
05:44 |
x86 |
|
Dxgkrnl.sys |
6.1.7600.20888 |
728,448 |
26-Jan-2011 |
06:01 |
x86 |
|
Dxgmms1.sys |
6.1.7600.20888 |
219,008 |
26-Jan-2011 |
06:01 |
x86 |
|
Lddmcore.ptxml |
Not applicable |
1,151 |
13-Jul-2009 |
20:32 |
Not applicable |
|
Cdd.dll |
6.1.7601.17514 |
107,520 |
20-Nov-2010 |
11:56 |
x86 |
|
Dxgkrnl.sys |
6.1.7601.17514 |
728,448 |
20-Nov-2010 |
12:29 |
x86 |
|
Dxgmms1.sys |
6.1.7601.17550 |
219,008 |
26-Jan-2011 |
06:13 |
x86 |
|
Lddmcore.ptxml |
Not applicable |
1,151 |
13-Jul-2009 |
20:32 |
Not applicable |
|
Cdd.dll |
6.1.7601.17514 |
107,520 |
20-Nov-2010 |
11:56 |
x86 |
|
Dxgkrnl.sys |
6.1.7601.21649 |
728,448 |
26-Jan-2011 |
05:59 |
x86 |
|
Dxgmms1.sys |
6.1.7601.21649 |
219,008 |
26-Jan-2011 |
05:59 |
x86 |
|
Lddmcore.ptxml |
Not applicable |
1,151 |
13-Jul-2009 |
20:32 |
Not applicable |
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 for Windows 7
Additional files for all supported x86-based versions of Windows 7
|
File name |
Update.mum |
|
File version |
Not applicable |
|
File size |
2,301 |
|
Date (UTC) |
27-Jan-2011 |
|
Time (UTC) |
04:10 |
|
Platform |
Not applicable |
|
File name |
X86_212d89d3bdcc35a7072bed4a9ac853f4_31bf3856ad364e35_6.1.7600.20888_none_9e9a2e68d3a02ec8.manifest |
|
File version |
Not applicable |
|
File size |
696 |
|
Date (UTC) |
27-Jan-2011 |
|
Time (UTC) |
04:10 |
|
Platform |
Not applicable |
|
File name |
X86_9fb38cab40768a065387e4b1808f8e44_31bf3856ad364e35_6.1.7600.16748_none_50b15ab988a1169b.manifest |
|
File version |
Not applicable |
|
File size |
696 |
|
Date (UTC) |
27-Jan-2011 |
|
Time (UTC) |
04:10 |
|
Platform |
Not applicable |
|
File name |
X86_a82e0eb1064b7ad92694b33d35d9fc34_31bf3856ad364e35_6.1.7601.17550_none_f43cf713b19b810d.manifest |
|
File version |
Not applicable |
|
File size |
696 |
|
Date (UTC) |
27-Jan-2011 |
|
Time (UTC) |
04:10 |
|
Platform |
Not applicable |
|
File name |
X86_e62267b1a90d9eef564c393f92444a29_31bf3856ad364e35_6.1.7601.21649_none_e8d80f23d988e1ea.manifest |
|
File version |
Not applicable |
|
File size |
696 |
|
Date (UTC) |
27-Jan-2011 |
|
Time (UTC) |
04:10 |
|
Platform |
Not applicable |
|
File name |
X86_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7600.16748_none_abcd36e844bd2bca.manifest |
|
File version |
Not applicable |
|
File size |
13,305 |
|
Date (UTC) |
27-Jan-2011 |
|
Time (UTC) |
04:14 |
|
Platform |
Not applicable |
|
File name |
X86_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7600.20888_none_ac2b94035dfb3b58.manifest |
|
File version |
Not applicable |
|
File size |
13,193 |
|
Date (UTC) |
26-Jan-2011 |
|
Time (UTC) |
06:20 |
|
Platform |
Not applicable |
|
File name |
X86_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7601.17550_none_ada0c1b241f2e8ef.manifest |
|
File version |
Not applicable |
|
File size |
13,305 |
|
Date (UTC) |
27-Jan-2011 |
|
Time (UTC) |
04:14 |
|
Platform |
Not applicable |
|
File name |
X86_microsoft-windows-lddmcore_31bf3856ad364e35_6.1.7601.21649_none_ae3e31035b0050d7.manifest |
|
File version |
Not applicable |
|
File size |
13,305 |
|
Date (UTC) |
27-Jan-2011 |
|
Time (UTC) |
04:14 |
|
Platform |
Not applicable |
