You cannot stop a process by using the Taskkill.exe utility in Windows

Symptoms

Consider the following scenario:

  • You have a computer that is running Windows 8, Windows Server 2012, Windows 7, Windows Server 2008 R2, Windows Vista, or Windows Server 2008.

  • The computer is operating under a heavy load.

  • You try to run the Taskkill.exe utility to stop a process. For example, you run the following command to stop a process that has the process ID "128":

    Taskkill.exe /PID 128

In this scenario, the process does not stop. Additionally, you receive an error message that resembles the following:

ERROR: The process "128" not found.

Resolution

Cumulative Update information

To resolve this issue in Windows 8 or in Windows Server 2012, install the cumulative update 2811660. For more information about how to obtain this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:

2811660 Windows 8 and Windows Server 2012 cumulative update: March 2013

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 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 be running one of the following operating systems:

  • Windows Vista Service Pack 2 (SP2)


  • Windows Server 2008 Service Pack 2 (SP2)


  • Windows 7 Service Pack 1 (SP1)

  • Windows Server 2008 R2 Service Pack 1 (SP1)

Registry information

To apply this hotfix, you do not have to make any changes to the registry.

Restart requirement

You do not 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 Vista and Windows Server 2008 file information notes Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" 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, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.0.600
    2.
    23xxx

    Windows Server 2008

    SP2

    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 Server 2008" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important 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 Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

Taskkill.exe

6.0.6002.23017

78,848

11-Jan-2013

09:09

x86

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

File name

File version

File size

Date

Time

Platform

Taskkill.exe

6.0.6002.23017

104,448

11-Jan-2013

02:27

x64

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

File name

File version

File size

Date

Time

Platform

Taskkill.exe

6.0.6002.23017

231,424

11-Jan-2013

01:27

IA-64

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, SR_Level (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 1.18xxx

    Windows Server 2008 R2

    SP1

    GDR

    6.1.760 1.22xxx

    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 Server 2008" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important 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

Taskkill.exe

6.1.7601.18049

77,824

11-Jan-2013

11:13

x86

Taskkill.exe

6.1.7601.22215

78,336

11-Jan-2013

11:10

x86

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

File name

File version

File size

Date

Time

Platform

Taskkill.exe

6.1.7601.18049

112,128

11-Jan-2013

12:06

x64

Taskkill.exe

6.1.7601.22215

112,128

11-Jan-2013

11:53

x64

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

File name

File version

File size

Date

Time

Platform

Taskkill.exe

6.1.7601.18049

232,960

11-Jan-2013

11:15

IA-64

Taskkill.exe

6.1.7601.22215

232,960

11-Jan-2013

11:21

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:

824684Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

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