This article applies to Windows 7 and Windows Server 2008 R2.

In Windows 7 and Windows Server 2008 R2, you can view information about a computer's reliability and problem history in Control Panel\System and Security\Action Center\Maintenance\Reliability Monitor. Incidents and estimated reliability are displayed in an interactive graph. A diagnostic infrastructure uses built-in testing and diagnostic scenarios to examine the current system state, and provide warnings or resolutions. The Reliability Analysis Component (RAC) supplies data about software installations and upgrades, application and operating system errors, and hardware issues to Reliability Monitor. This data is used to calculate Reliability Monitor's System Stability Index.

The data that is displayed in Control Panel is collected by the RacTask scheduled task.

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To enable Reliability Monitor data collection by using the GUI:

1. Click Start, click in the Start Search box, type taskschd.msc, and then press ENTER. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

   Alternatively, you can open the Task Scheduler snap-in from within Server Manager. In the Server Manager tree pane, expand Configuration, and then go on to step 2.

2. In the navigation pane, expand Task Scheduler Library, expand Microsoft, expand Windows, and then click RAC.

   

3. Right-click RAC, point to View, and then either click Show Hidden Tasks, or verify that it is selected.

   

4. In the results pane, right-click RacTask, and then click Enable.

5. Close the Task Scheduler snap-in.

To disable Reliability Monitor data collection by using the GUI:

1. Click Start, click in the Start Search box, type taskschd.msc, and then press ENTER. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

   Alternatively, you can open the Task Scheduler snap-in from within Server Manager. In the Server Manager tree pane, expand Configuration, and then go on to step 2.

2. In the navigation pane, expand Task Scheduler Library, expand Microsoft, expand Windows, and then click RAC.

3. Right-click RAC, point to View, and then either click Show Hidden Tasks, or verify that it is selected.

4. In the results pane, right-click RacTask, and then click Disable.

5. Close the Task Scheduler snap-in.

To enable Reliability Monitor data collection at the command line

1. Open a Command Prompt session as an Administrator. Either you must be logged on by using the built-in Administrator account, or you must open Command Prompt by using the Run as administrator command.

2. Type the following, and then press ENTER.

   schtasks.exe /change /enable /tn \Microsoft\Windows\RAC\RacTask

3. If a SUCCESS message is returned, close the Command Prompt session.

To disable Reliability Monitor data collection at the command line

1. Open a Command Prompt session as an Administrator. Either you must be logged on by using the built-in Administrator account, or you must open Command Prompt by using the Run as administrator command.

2. Type the following, and then press ENTER.

   schtasks.exe /change /disable /tn \Microsoft\Windows\RAC\RacTask

3. If a SUCCESS message is returned, close the Command Prompt session.

Additional information

For more information about Reliability Monitor, reliability data collection, and using reliability data collection for troubleshooting purposes, see the following TechNet Library topics. The content of this WiKi page was adapted from the following content. 

• Using Reliability Monitor
• Reliability Infrastructure - Events and Errors
• Windows Vista Performance and Reliability Monitoring Step-by-Step Guide