Applies ToWindows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Standard Windows Server 2008 R2 for Itanium-Based Systems Windows Server 2008 R2 Foundation Windows Server 2008 R2 Web Edition Windows 7 Enterprise Windows 7 Home Basic Windows 7 Home Premium Windows 7 Professional Windows 7 Ultimate Windows 7 Starter

Not sure if this is the right fix? We've added this issue to our memory dump diagnostic which can confirm.

Symptoms

When you try to write some data onto a CD or DVD on a computer that is running Windows Server 2008 R2 or Windows 7, the computer may stop responding. Additionally, you receive the following Stop error message:

STOP: 0x0000007E (parameter1, parameter2, parameter3, parameter4)

Note This Stop error describes a SYSTEM_THREAD_EXCEPTION_NOT_HANDLED issue.Notes

  • The parameters in this Stop error message vary, depending on the configuration of the computer.

  • Not all "STOP: 0x0000007E" errors are caused by this issue.

Cause

This issue occurs because of an error in the Udfs.sys driver. Under certain conditions, the Udfs.sys driver tries to access a variable without checking whether its value is NULL. If its value is NULL, the issue described in the "Symptoms" section occurs.

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=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 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 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

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:

    Version

    Product

    Milestone

    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

  • GDR service branches contain only those fixes that are widely released to address widespread, critical 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 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

File name

File version

File size

Date

Time

Platform

Udfs.sys

6.1.7600.21086

246,784

07-Nov-2011

03:18

x86

Udfs.sys

6.1.7601.21856

246,784

07-Nov-2011

03:14

x86

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

File name

File version

File size

Date

Time

Platform

Udfs.sys

6.1.7600.21086

246,784

07-Nov-2011

03:18

x86

Udfs.sys

6.1.7601.21856

246,784

07-Nov-2011

03:14

x86

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Udfs.sys

6.1.7600.21086

821,760

07-Nov-2011

03:06

IA-64

Udfs.sys

6.1.7601.21856

821,760

07-Nov-2011

02:51

IA-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 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

Update.mum

File version

Not Applicable

File size

2,773

Date (UTC)

07-Nov-2011

Time (UTC)

16:01

Platform

Not Applicable

File name

X86_1df9ad3ad21bb38ab48076466c8d3977_31bf3856ad364e35_6.1.7600.21086_none_d506d96681054d74.manifest

File version

Not Applicable

File size

692

Date (UTC)

07-Nov-2011

Time (UTC)

16:01

Platform

Not Applicable

File name

X86_bde4c267deec05e35d098fb934f44eeb_31bf3856ad364e35_6.1.7601.21856_none_5f124aa7569296d7.manifest

File version

Not Applicable

File size

692

Date (UTC)

07-Nov-2011

Time (UTC)

16:01

Platform

Not Applicable

File name

X86_microsoft-windows-udfs_31bf3856ad364e35_6.1.7600.21086_none_a6da6d1b9754247b.manifest

File version

Not Applicable

File size

4,467

Date (UTC)

07-Nov-2011

Time (UTC)

12:36

Platform

Not Applicable

File name

X86_microsoft-windows-udfs_31bf3856ad364e35_6.1.7601.21856_none_a8e163a994620679.manifest

File version

Not Applicable

File size

4,467

Date (UTC)

07-Nov-2011

Time (UTC)

12:17

Platform

Not Applicable

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

File name

Amd64_5ed67986992915c5092505a49cb515ad_31bf3856ad364e35_6.1.7601.21856_none_c3efd658e4d648a1.manifest

File version

Not Applicable

File size

696

Date (UTC)

07-Nov-2011

Time (UTC)

16:01

Platform

Not Applicable

File name

Amd64_bff69c3e66f7a848fed027c4010a96e6_31bf3856ad364e35_6.1.7600.21086_none_a8515a62e4a341e1.manifest

File version

Not Applicable

File size

696

Date (UTC)

07-Nov-2011

Time (UTC)

16:01

Platform

Not Applicable

File name

Amd64_microsoft-windows-udfs_31bf3856ad364e35_6.1.7600.21086_none_02f9089f4fb195b1.manifest

File version

Not Applicable

File size

4,471

Date (UTC)

07-Nov-2011

Time (UTC)

13:43

Platform

Not Applicable

File name

Amd64_microsoft-windows-udfs_31bf3856ad364e35_6.1.7601.21856_none_04ffff2d4cbf77af.manifest

File version

Not Applicable

File size

4,471

Date (UTC)

07-Nov-2011

Time (UTC)

13:11

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

3,215

Date (UTC)

07-Nov-2011

Time (UTC)

16:01

Platform

Not Applicable

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

File name

Ia64_9d115eab3a19027df5801fb60c7a188c_31bf3856ad364e35_6.1.7600.21086_none_b3e650e519095b24.manifest

File version

Not Applicable

File size

694

Date (UTC)

07-Nov-2011

Time (UTC)

16:01

Platform

Not Applicable

File name

Ia64_c5b0a8e1f3ffe27f8e23f5101c11abcc_31bf3856ad364e35_6.1.7601.21856_none_50e9a6e097480e2d.manifest

File version

Not Applicable

File size

694

Date (UTC)

07-Nov-2011

Time (UTC)

16:01

Platform

Not Applicable

File name

Ia64_microsoft-windows-udfs_31bf3856ad364e35_6.1.7600.21086_none_a6dc111197522d77.manifest

File version

Not Applicable

File size

4,469

Date (UTC)

07-Nov-2011

Time (UTC)

13:39

Platform

Not Applicable

File name

Ia64_microsoft-windows-udfs_31bf3856ad364e35_6.1.7601.21856_none_a8e3079f94600f75.manifest

File version

Not Applicable

File size

4,469

Date (UTC)

07-Nov-2011

Time (UTC)

13:17

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

1,947

Date (UTC)

07-Nov-2011

Time (UTC)

16:01

Platform

Not Applicable

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