Remember, Group Policy may be enforced; changing a power policy that is controlled by Group Policy lasts only until the user logs on again.
An administrator may completely block changes, or items from the list may be removed from use. The administrator should be consulted on these issues, and you must connect as an administrator when you use Remote Desktop to make changes. The key point to remember is that not all power policies are appropriate to all users and to their specific equipment. Power plans can be customized by an administrator, by a power application, or by Group Policy.
Check these items before you continue to troubleshoot. You can also click Create a power plan and then adjust the customized plan settings.
If the power plans become corrupted, you can restore the power plans to default settings. This action will overwrite all default schemes. To restore the power plans to default settings, follow these steps:. Right-click CMD , and then click Run as administrator. Does the computer have an OEM-supplied power-management application that is installed?
If this is the case, look for updates, or test by disabling it. Many times, the OEM may augment the power-management policies by customizing the policies for their specific device. Contact the manufacturer when the power-management application is not working correctly. Review Windows Update. The Windows Update service is a key item to review. Also, make sure that you search the Microsoft Knowledge Base for known issues. Windows Update may have updated drivers available that may be relevant to your current issue.
Many times, updated drivers are listed in the "Optional" section of Windows Update. Q1: Why does my computer wake every day at and then run a diagnostic tool? To use this option, run the following command:. Q2: How can I determine all the available sleep states? To do this, run the following command:. The following sleep states are available on this system: Standby S3 Hibernate Hybrid Sleep The following sleep states are not available on this system: Standby S1 The system firmware does not support this standby state.
Standby S2 The system firmware does not support this standby state. Example 2 The following is an example of a case in which the sleep states are disabled. This example was created by removing the current video driver and by using the VGA driver. The VGA driver does not support sleep states and does not poll the device for supported sleep state support. Windows polls not only the driver but also the BIOS before it enables any sleep states.
The following sleep states are not available on this system: Standby S1 The system firmware does not support this standby state.
An internal system component has disabled this standby state. Standby S3 An internal system component has disabled this standby state. Hibernate An internal system component has disabled hibernation. A3: This is a common issue in which the display is using the default VGA driver.
This driver is not optimized for the video card and will consume more power. To resolve this issue, update your video card driver. Q4: Why can't I see some power-management settings? A4: Windows 7 cannot display power-management settings that the computer does not support. Q5: How can I determine whether Group Policy is in effect and is forcing or recommending a particular power plan?
A5: Use the Gpresult command. This command shows what power options are applied. For more information about the Gpresult command, visit the following Microsoft TechNet website:. Gpresult The power plan can also be configured by using policy preference. Additionally, tracing can be enabled to troubleshoot preference issues that are related to power options. Q6: How can I set a power plan in place without a restart?
For example, run a command that resembles the following:. What can I do? Can I diagnose what is occurring? A7: To diagnose the problem, create a power report. To do this, follow these steps:. In the Temp folder, open the Energy-report.
This report uses a second run. However, the report time is configurable. Review this document for errors and warnings. The informational section provides a detail of the Power Policy plan and the computer's configuration during the test period. The following example shows several ways to optimize battery life. The report provides the results that let you make informed decisions.
You can work through each error and warning to help optimize the computer. Power Policy: Dim timeout is disabled On Battery The display is not configured to automatically dim after a period of inactivity. Power Policy: Power Policy: Dim timeout is disabled Plugged In The display is not configured to automatically dim after a period of inactivity.
Average Utilization percent 7. Power Policy: Disk timeout is long On Battery The disk is configured to turn off after longer than 30 minutes. Timeout seconds Power Policy: Display timeout is long Plugged In The display is configured to turn off after longer than 10 minutes. Need more help? Expand your skills. Get new features first. Was this information helpful? Yes No. Thank you! Any more feedback? The more you tell us the more we can help. Can you help us improve? Resolved my issue. Clear instructions.
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