This article describes an issue that occurs when the Lsass.exe process crashes in Windows Server 2008 R2 Service Pack 1 (SP1) or Windows 7 SP1. A hotfix is available to resolve this issue. The hotfix has a prerequisite.

Cause

The RPC return value for a method inside the Lsass.exe process is expected to be in the range of 0 to 4. But instead, it receives the value 4001. This makes Directory Services unstable and unpredictable, and it may have serious consequences to the whole organization.

Resolution

To resolve this issue, we have released a hotfix for Windows 7 or Windows Server 2008 R2.

Get the hotfix for Windows 7 or Windows Server 2008 R2

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 this specific problem. 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, submit a request to 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=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 update, you must have Service Pack 1 installed in Windows 7 or 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 may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

More 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 and 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 1.22xxx

    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" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very 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

Rpchttp.dll

6.1.7601.22853

141,312

25-Oct-2014

02:08

x86

Rpcrt4.dll

6.1.7601.22853

654,848

25-Oct-2014

02:08

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

Rpchttp.dll

6.1.7601.22743

190,464

14-Jul-2014

01:52

x64

Rpcrt4.dll

6.1.7601.22853

1,215,488

25-Oct-2014

02:19

x64

Rpcrt4.dll

6.1.7601.22853

665,088

25-Oct-2014

02:04

x86

Rpchttp.dll

6.1.7601.22853

141,312

25-Oct-2014

02:08

x86

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 property

Value

File name

X86_24a75abee192cd8e194e8d8b0d5a6186_31bf3856ad364e35_6.1.7601.22853_none_7ad711ea06239d9a.manifest

File version

Not applicable

File size

1,037

Date (UTC)

25-Oct-2014

Time (UTC)

06:06

Platform

Not applicable

File name

X86_eb808232c3c25a0e7947e8da6ba6cba9_31bf3856ad364e35_6.1.7601.22853_none_5c630a9fd9caa183.manifest

File version

Not applicable

File size

697

Date (UTC)

25-Oct-2014

Time (UTC)

06:06

Platform

Not applicable

File name

X86_microsoft-windows-rpc-http_31bf3856ad364e35_6.1.7601.22853_none_a25da0b0b6d50cdf.manifest

File version

Not applicable

File size

8,958

Date (UTC)

25-Oct-2014

Time (UTC)

02:34

Platform

Not applicable

File name

X86_microsoft-windows-rpc-local_31bf3856ad364e35_6.1.7601.22853_none_b65f52d7bc957290.manifest

File version

Not applicable

File size

59,061

Date (UTC)

25-Oct-2014

Time (UTC)

02:32

Platform

Not applicable

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

File property

Value

File name

Amd64_2e86901f3e2240c24c0cf06891a4d519_31bf3856ad364e35_6.1.7601.22853_none_411f00527cb230a6.manifest

File version

Not applicable

File size

1,726

Date (UTC)

25-Oct-2014

Time (UTC)

06:06

Platform

Not applicable

File name

Amd64_df7fd5d29a8a8598c00686c6344eb8c5_31bf3856ad364e35_6.1.7601.22853_none_7af58a6966078b17.manifest

File version

Not applicable

File size

1,386

Date (UTC)

25-Oct-2014

Time (UTC)

06:06

Platform

Not applicable

File name

Amd64_e095069ccf6400b185813025ddc93e31_31bf3856ad364e35_6.1.7601.22853_none_6d784dc853821cfd.manifest

File version

Not applicable

File size

701

Date (UTC)

25-Oct-2014

Time (UTC)

06:06

Platform

Not applicable

File name

Amd64_fb0ebe9d01d5e80ed17c00cb0f36b0f8_31bf3856ad364e35_6.1.7601.22853_none_f42d24340687c2aa.manifest

File version

Not applicable

File size

698

Date (UTC)

25-Oct-2014

Time (UTC)

06:06

Platform

Not applicable

File name

Amd64_microsoft-windows-rpc-http_31bf3856ad364e35_6.1.7601.22853_none_fe7c3c346f327e15.manifest

File version

Not applicable

File size

9,250

Date (UTC)

25-Oct-2014

Time (UTC)

06:06

Platform

Not applicable

File name

Amd64_microsoft-windows-rpc-local_31bf3856ad364e35_6.1.7601.22853_none_127dee5b74f2e3c6.manifest

File version

Not applicable

File size

59,065

Date (UTC)

25-Oct-2014

Time (UTC)

02:42

Platform

Not applicable

File name

Wow64_microsoft-windows-rpc-local_31bf3856ad364e35_6.1.7601.22853_none_1cd298ada953a5c1.manifest

File version

Not applicable

File size

59,071

Date (UTC)

25-Oct-2014

Time (UTC)

02:29

Platform

Not applicable

File name

X86_microsoft-windows-rpc-http_31bf3856ad364e35_6.1.7601.22853_none_a25da0b0b6d50cdf.manifest

File version

Not applicable

File size

8,958

Date (UTC)

25-Oct-2014

Time (UTC)

02:34

Platform

Not applicable

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

See the terminology that Microsoft uses to describe software updates.

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