Task Scheduler runs a missed task unexpectedly on a computer that is running Windows 7 or Windows Server 2008 R2

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Article ID: 2698800 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You schedule some tasks in Task Scheduler to run daily, weekly or monthly on a computer that is running Windows 7 or Windows Server 2008 R2.
  • You clear the check box for the Run task as soon as possible after a scheduled start is missed option in the Task Properties dialog box.
  • The computer enters sleep or hibernation during the scheduled task. Then, you resume the computer from sleep or hibernation after the scheduled task.
In this scenario, the Task Scheduler runs the task.

CAUSE

This issue occurs because Task Scheduler runs tasks regardless of the Run task as soon as possible after a scheduled start is missed option.

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 website:
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

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 use 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:
    Collapse this tableExpand this table
    VersionProductMilestoneService branch
    6.1.760 0.21xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1.21xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • 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
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Hashcleanup.exe6.1.7600.211839,72807-Apr-201211:33x86
Taskeng.exe6.1.7600.21183192,00007-Apr-201211:34x86
Taskeng.exe6.1.7601.21965192,00010-Apr-20124:21x86
D61d61c8-d73a-4eee-8cdd-f6f9786b7124.xmlNot applicable3,18810-Jun-200921:37Not applicable
Schedsvc.dll6.1.7600.21183749,05607-Apr-201211:39x86
Schedsvc.mofNot applicable2,68410-Jun-200921:37Not applicable
D61d61c8-d73a-4eee-8cdd-f6f9786b7124.xmlNot applicable3,18810-Jun-200921:37Not applicable
Schedsvc.dll6.1.7601.21965750,59210-Apr-20124:25x86
Schedsvc.mofNot applicable2,68410-Jun-200921:37Not applicable
Wmicmiplugin.dll6.1.7600.21183351,23207-Apr-201211:40x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Hashcleanup.exe6.1.7600.2118310,24007-Apr-201212:24x64
Taskeng.exe6.1.7600.21183464,89607-Apr-201212:25x64
Taskeng.exe6.1.7601.21965464,89610-Apr-20125:16x64
D61d61c8-d73a-4eee-8cdd-f6f9786b7124.xmlNot applicable3,18810-Jun-200920:57Not applicable
Schedsvc.dll6.1.7600.211831,114,62407-Apr-201212:30x64
Schedsvc.mofNot applicable2,68410-Jun-200920:57Not applicable
D61d61c8-d73a-4eee-8cdd-f6f9786b7124.xmlNot applicable3,18810-Jun-200920:57Not applicable
Schedsvc.dll6.1.7601.219651,109,50410-Apr-20125:20x64
Schedsvc.mofNot applicable2,68410-Jun-200920:57Not applicable
Wmicmiplugin.dll6.1.7600.21183524,28807-Apr-201212:32x64
Schedsvc.mofNot applicable2,68422-Jul-200923:21Not applicable
Schedsvc.mofNot applicable2,68413-Nov-20100:00Not applicable
Taskeng.exe6.1.7600.21183192,00007-Apr-201211:34x86
Taskeng.exe6.1.7601.21965192,00010-Apr-20124:21x86
Wmicmiplugin.dll6.1.7600.21183351,23207-Apr-201211:40x86
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Hashcleanup.exe6.1.7600.2118319,96807-Apr-201211:04IA-64
Taskeng.exe6.1.7600.21183864,76807-Apr-201211:05IA-64
Taskeng.exe6.1.7601.21965864,76810-Apr-20124:06IA-64
D61d61c8-d73a-4eee-8cdd-f6f9786b7124.xmlNot applicable3,18810-Jun-200921:02Not applicable
Schedsvc.dll6.1.7600.211831,774,08007-Apr-201211:08IA-64
Schedsvc.mofNot applicable2,68410-Jun-200921:02Not applicable
D61d61c8-d73a-4eee-8cdd-f6f9786b7124.xmlNot applicable3,18810-Jun-200921:02Not applicable
Schedsvc.dll6.1.7601.219651,774,08010-Apr-20124:09IA-64
Schedsvc.mofNot applicable2,68410-Jun-200921:02Not applicable
Wmicmiplugin.dll6.1.7600.21183939,52007-Apr-201211:09IA-64
Schedsvc.mofNot applicable2,68422-Jul-200923:21Not applicable
Schedsvc.mofNot applicable2,68413-Nov-20100:00Not applicable
Taskeng.exe6.1.7600.21183192,00007-Apr-201211:34x86
Taskeng.exe6.1.7601.21965192,00010-Apr-20124:21x86

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
Collapse this tableExpand this table
File nameX86_1a064f70f9e43ea57c1803fcd7bf64fb_31bf3856ad364e35_6.1.7600.21183_none_859d55d338d4d815.manifest
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File size713
Date (UTC)10-Apr-2012
Time (UTC)16:46
PlatformNot applicable
File nameX86_28968b85913bbe78ec9817ab255484c3_31bf3856ad364e35_6.1.7601.21965_none_63961d1891023b76.manifest
File versionNot applicable
File size709
Date (UTC)10-Apr-2012
Time (UTC)16:46
PlatformNot applicable
File nameX86_529571cb57aa063c35d879c623a0d07f_31bf3856ad364e35_6.1.7601.21965_none_3ac71b9b92d1718f.manifest
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File size708
Date (UTC)10-Apr-2012
Time (UTC)16:46
PlatformNot applicable
File nameX86_656b42ee4874b5ede38e76abcd60c3d6_31bf3856ad364e35_6.1.7600.21183_none_1f542910001ac094.manifest
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Date (UTC)10-Apr-2012
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Date (UTC)10-Apr-2012
Time (UTC)16:46
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File versionNot applicable
File size701
Date (UTC)10-Apr-2012
Time (UTC)16:46
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File nameX86_microsoft-windows-t..ched-hashcleanup-gc_31bf3856ad364e35_6.1.7600.21183_none_53be7cf5e3ac8e28.manifest
File versionNot applicable
File size2,437
Date (UTC)07-Apr-2012
Time (UTC)12:13
PlatformNot applicable
File nameX86_microsoft-windows-taskscheduler-engine_31bf3856ad364e35_6.1.7600.21183_none_e60a230f394d9210.manifest
File versionNot applicable
File size2,472
Date (UTC)07-Apr-2012
Time (UTC)12:10
PlatformNot applicable
File nameX86_microsoft-windows-taskscheduler-engine_31bf3856ad364e35_6.1.7601.21965_none_e8084a453661c2ad.manifest
File versionNot applicable
File size2,472
Date (UTC)10-Apr-2012
Time (UTC)5:01
PlatformNot applicable
File nameX86_microsoft-windows-taskscheduler-service_31bf3856ad364e35_6.1.7600.21183_none_2f5ef47211759d71.manifest
File versionNot applicable
File size119,025
Date (UTC)07-Apr-2012
Time (UTC)12:15
PlatformNot applicable
File nameX86_microsoft-windows-taskscheduler-service_31bf3856ad364e35_6.1.7601.21965_none_315d1ba80e89ce0e.manifest
File versionNot applicable
File size119,025
Date (UTC)10-Apr-2012
Time (UTC)5:00
PlatformNot applicable
File nameX86_microsoft-windows-wmi-cmiplugin_31bf3856ad364e35_6.1.7600.21183_none_bd6062c7a67af16f.manifest
File versionNot applicable
File size3,287
Date (UTC)07-Apr-2012
Time (UTC)12:09
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_067a0f0fcf454f40c1eb4074c05705b4_31bf3856ad364e35_6.1.7601.21965_none_df48bf2432b2273b.manifest
File versionNot applicable
File size712
Date (UTC)10-Apr-2012
Time (UTC)16:46
PlatformNot applicable
File nameAmd64_1ca4f97e7b490824a8e31d630e0e5ba8_31bf3856ad364e35_6.1.7600.21183_none_753d2b5ab34867dd.manifest
File versionNot applicable
File size705
Date (UTC)10-Apr-2012
Time (UTC)16:46
PlatformNot applicable
File nameAmd64_3552a1b63ff83423fae1fc4488c8730e_31bf3856ad364e35_6.1.7601.21965_none_07ceb37a2f01db8b.manifest
File versionNot applicable
File size713
Date (UTC)10-Apr-2012
Time (UTC)16:46
PlatformNot applicable
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File versionNot applicable
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Date (UTC)07-Apr-2012
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File versionNot applicable
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File nameAmd64_microsoft-windows-taskscheduler-engine_31bf3856ad364e35_6.1.7601.21965_none_4426e5c8eebf33e3.manifest
File versionNot applicable
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Date (UTC)10-Apr-2012
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File versionNot applicable
File size119,031
Date (UTC)07-Apr-2012
Time (UTC)13:25
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Date (UTC)07-Apr-2012
Time (UTC)13:23
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File versionNot applicable
File size3,287
Date (UTC)07-Apr-2012
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Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_26fa3833c73d42b907c7897b00cadc37_31bf3856ad364e35_6.1.7601.21965_none_1d411b40c9148ec9.manifest
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Date (UTC)07-Apr-2012
Time (UTC)12:47
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Date (UTC)07-Apr-2012
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Date (UTC)10-Apr-2012
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Properties

Article ID: 2698800 - Last Review: May 9, 2012 - Revision: 1.0
APPLIES TO
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Starter
  • Windows 7 Ultimate
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 for Itanium-Based Systems
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Standard
  • Windows Web Server 2008 R2
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2698800

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