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powercfg (executable name powercfg.exe) is a command-line utility that is used from an elevated Windows Command Prompt to control all configurable power system settings, including hardware-specific configurations that are not configurable through the Control Panel, on a per-user basis.
The following example will set the machine to sleep after 10 minutes and sleep the display after five minutes, but only when powered by the battery. pmset -b sleep 10 displaysleep 5. The following command will assign slightly different power management settings for circumstances where the machine is powered by the charger.
On the other hand, a system in sleep mode still consumes power to keep the data in the RAM, and thus cannot last indefinitely, as hibernation can. Detaching power from a system in sleep mode results in data loss, while cutting the power of a system in hibernation has no risk; the hibernated system can resume when and if the power is restored.
Microsoft Windows 2000 and later support sleep at the operating system level (ACPI S3 state) without special drivers from the hardware manufacturer, except of video adapters. Windows Vista's Hybrid sleep feature saves the contents of volatile memory to hard disk before entering sleep mode. If power to memory is lost, it will use the hard disk ...
The "It's now safe to power off the system" screen in Windows 10 and 11. Microsoft's Windows 98 was the first operating system to implement ACPI, [ 17 ] [ 18 ] but its implementation was somewhat buggy or incomplete, [ 19 ] [ 20 ] although some of the problems associated with it were caused by the first-generation ACPI hardware. [ 21 ]
Screenshot of Windows 8's Settings app. Screenshot of Windows 8.1's Settings app. The first generation of the app, called "PC Settings" was included with Windows 8, Windows Server 2012, Windows 8.1, and Windows Server 2012 R2. On Windows 8, the PC Settings app was designed as a simplified area optimized for use on touchscreen devices.
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Another native version is the timeout command which is part of current versions of Windows. [11] The command is available as a separate package for Microsoft Windows as part of the UnxUtils collection of native Win32 ports of common GNU Unix-like utilities. [12] The sleep command has also been ported to the IBM i operating system. [13]