Symptoms

Consider the following scenario:

  • You install the Client for NFS component on a computer that is running Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 SP1, and then the computer acts as a Network File System (NFS) client.

  • The NFS client disconnects from an NFS server, and then tries to reconnect to the server.

In this scenario, this issue occurs, and the CPU usage of the NFS client is higher than expected. 

Resolution

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that 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, go to 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 hotfix, you must first install SP1 on Windows 7 or Windows 2008 R2. For more information, 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 use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

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 notesImportant 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 1.22 xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • 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 Windows Server 2008 R2" 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

Nfs-clientcore-ppdlic.xrm-ms

Not applicable

3,001

14-May-2014

08:43

Not applicable

Nfsclnt.exe

6.1.7601.22684

52,736

14-May-2014

08:28

x86

Nfsnp.dll

6.1.7601.22684

60,416

14-May-2014

08:28

x86

Nfsrdr.mof

Not applicable

4,471

10-Jun-2009

21:40

Not applicable

Nfsrdr.sys

6.1.7601.22684

202,240

14-May-2014

07:32

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

Nfs-clientcore-ppdlic.xrm-ms

Not applicable

3,001

14-May-2014

09:42

Not applicable

Nfsclnt.exe

6.1.7601.22684

65,536

14-May-2014

09:28

x64

Nfsnp.dll

6.1.7601.22684

72,192

14-May-2014

09:29

x64

Nfsrdr.mof

Not applicable

4,471

10-Jun-2009

21:02

Not applicable

Nfsrdr.sys

6.1.7601.22684

247,808

14-May-2014

08:11

x64

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

File name

File version

File size

Date

Time

Platform

Nfs-clientcore-ppdlic.xrm-ms

Not applicable

3,001

14-May-2014

08:55

Not applicable

Nfsclnt.exe

6.1.7601.22684

156,160

14-May-2014

08:40

IA-64

Nfsnp.dll

6.1.7601.22684

159,744

14-May-2014

08:41

IA-64

Nfsrdr.mof

Not applicable

4,471

09-Jul-2013

06:37

Not applicable

Nfsrdr.sys

6.1.7601.22684

590,848

14-May-2014

07:45

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 for Windows 7 and Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7

File property

Value

File name

X86_d60f8cf64bd1230be145f7b7c21fdf0d_31bf3856ad364e35_6.1.7601.22684_none_3e58dc47dda94866.manifest

File version

Not applicable

File size

702

Date (UTC)

14-May-2014

Time (UTC)

12:13

Platform

Not applicable

File name

X86_microsoft-windows-nfs-clientcore_31bf3856ad364e35_6.1.7601.22684_none_af27bd2fba2cac31.manifest

File version

Not applicable

File size

28,372

Date (UTC)

14-May-2014

Time (UTC)

08:49

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_e487c5ced8901c54882739e6c696554b_31bf3856ad364e35_6.1.7601.22684_none_eda936bb0b54b0f2.manifest

File version

Not applicable

File size

706

Date (UTC)

14-May-2014

Time (UTC)

12:13

Platform

Not applicable

File name

Amd64_microsoft-windows-nfs-clientcore_31bf3856ad364e35_6.1.7601.22684_none_0b4658b3728a1d67.manifest

File version

Not applicable

File size

28,376

Date (UTC)

14-May-2014

Time (UTC)

09:50

Platform

Not applicable

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

File property

Value

File name

Ia64_0445b5a65f038789c1b01a3929ed19cc_31bf3856ad364e35_6.1.7601.22684_none_9d7f878ce8a20f3f.manifest

File version

Not applicable

File size

704

Date (UTC)

14-May-2014

Time (UTC)

12:13

Platform

Not applicable

File name

Ia64_microsoft-windows-nfs-clientcore_31bf3856ad364e35_6.1.7601.22684_none_af296125ba2ab52d.manifest

File version

Not applicable

File size

28,374

Date (UTC)

14-May-2014

Time (UTC)

09:00

Platform

Not applicable


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