For a mobile PC, this command may show devices similar to the following:. For a desktop computer, this command may show devices similar to the following:. Or, visit the following Microsoft TechNet website:. Powercfg Command-Line Options.
What is the purpose of the computer? Is this a mobile PC that experiences little high-end use? Is it a datacenter-class server that has mission-critical SQL installed?
Or, is it something in between? Does the computer have the latest BIOS installed? This is important when you investigate power issues. What are the BIOS settings that are available? Examine the BIOS options. Frequently, a user may have changed settings that affect the operating system.
The operating system would be unable to change this if the BIOS vendor did not let the operating system take ownership of this resource.
In these cases, changing the settings may not be an option. These settings may not even appear in the Power Management console. Have the default settings for the power plan changed? If the default settings are changed, reset the current power plan. Frequently, a user or the system administrator may adjust the power plans. 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? On laptops, you might not see the Ultimate Performance plan in Control Panel. Ultimate Performance will make attempts to eliminate micro-latencies and it will force the system to use more power than required, which is why Microsoft is not enabling it on battery-powered systems.
If you select Ultimate Performance as your default power plan, Windows will prioritize performance over energy efficiency. Microsoft says that the Ultimate Performance power scheme is available for everyone with Windows 10 April Update version or newer. Windows Latest. Use the XML file as one of the inputs to the Windows Configuration Designer command-line to generate a provisioning package that contains the power settings, then apply the package to the image.
You can use overlays to customize the power settings and PPM options that are engaged for each slider mode. In previous versions of Windows, power settings could only be configured per power scheme, and PPM options could only be configured per power profile. The introduction of overlays enables OEMs to better optimize power settings based on the slider mode selected by the user, as opposed to the power scheme or power profile selected by the device.
To configure PPM and power settings per slider mode, apply them to one of the following overlays:. The Best Performance mode inherits the settings configured for the Balanced default profile. Configure these profiles to customize the settings that are engaged in the associated slider modes. Note that in the ppkg, the Profile SchemeAlias should be "Balanced". Only settings which can affect perceived performance differences can be customized across slider modes.
Each slider mode should be thought of as a "lite" power plan, which only contains settings that impact performance, such as CPU settings PPM and power throttling. Optimizing PPM enables the OS to favor either power or performance, depending on user preference similar to the low power media profile that is applied when a user is watching video in full screen mode.
To learn more about the PPM options that you can configure, and how to configure them per power scheme, see Processor power management options.
Below is an example of a customizations. To engage your customized power settings only when the slider is in a particular mode, create an AddPowerSettingDirective in your INF file that indicates the default values for each overlay.
There are Default directives that must be included in an AddPowerSetting section. Starting with Windows release the slider is available for AC only i. The latest Windows update brought a lot of new and cool features for us to play with. Codenamed Redstone this update started rolling out for users a few weeks ago at which point all of those shiny new features because available for us.
One of them is Ultimate Performance. Basically, this is a power plan that Microsoft released without getting too many details on it, except it was only described a something that would give a boost to your machine. Do not confuse this with the High Performance power plan on your computer. That one amps up the hardware and you get more power, but Windows is still has some power saving settings that reduces the performance slightly.
The Ultimate performance power plan goes to a The sleep settings on your computer and hard dives are turned off, meaning that they will never sleep. Initially, this is only available to servers and workstations because those machines need as much computing power as they can get.
Due to the power requirements it is not recommended to use this on a portable device such as a laptop or tablet because it will drain the battery much faster than usual.
0コメント