windows 7或windows2008 关机慢

http://support.microsoft.com/kb/975777/en-us

Article ID: 975777 - Last Review: November 10, 2009 - Revision: 1.2

There is a delay when you shut down, restart, or log off a computer that is running Windows 7 or Windows Server 2008 R2

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On This Page

• SYMPTOMS
• CAUSE
• RESOLUTION
  • Hotfix information
    • Prerequisites
    • Restart requirement
    • Hotfix replacement information
    • File information
      • Windows 7, x86-based editions
      • Windows 7 and Windows Server 2008 R2, x64-based editions
      • Windows Server 2008 R2, Itanium-based editions
• STATUS
• MORE INFORMATION

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SYMPTOMS

Consider the following scenario:You have a computer that is running Windows 7 or...

Consider the following scenario:

• You have a computer that is running Windows 7 or Windows Server 2008 R2.
• You try to shut down, restart, or log off the computer.

In this scenario, the logoff process stops for about six seconds. Additionally, you receive the following message:

1 program still needs to close:
(Waiting for) Task Host Window

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CAUSE

This problem occurs because the TaskHost.exe process stops handling messages dur...

This problem occurs because the TaskHost.exe process stops handling messages during system shutdown, during system restart, and during system logoff.

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RESOLUTION

Hotfix information A supported hotfix is available from Microsoft. However, thi...

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=support (http://support.microsoft.com/contactus/?ws=support)

Note 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

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The global version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows 7, x86-based editions

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File name	File version	File size	Date	Time	Platform
Taskhost.exe	6.1.7600.20537	49,152	30-Sep-2009	06:59	x86

Windows 7 and Windows Server 2008 R2, x64-based editions

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File name	File version	File size	Date	Time	Platform
Taskhost.exe	6.1.7600.20537	69,120	30-Sep-2009	07:26	x64

Windows Server 2008 R2, Itanium-based editions

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File name	File version	File size	Date	Time	Platform
Taskhost.exe	6.1.7600.20537	130,560	30-Sep-2009	05:54	IA-64

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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that ar...

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

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MORE INFORMATION

For more information about software update terminology, click the following arti...

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates