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How to Check Power States on Windows 11

Hello everyone, today in this article we will show you how to check power states in Windows 11. System power states describe the power consumption of the system as a whole. The operating system supports six system power states, named from S0 (fully on and operational) to S5 (off). So, without further ado, let’s begin.

Windows 11 is the latest major release of Microsoft’s operating system and the successor to Windows 10. The operating system features a brand new simplified but modernized interface and is designed to inspire productivity and creativity. The operating system features a brand new simplified but modernized interface and is designed to inspire productivity and creativity. The power state of a device describes the power state of a device in a computer, independent of the other devices in the computer.

The power states of devices are referred to as D0, D1, D2 and D3. D0 is the fully on state, while D1, D2 and D3 are low power states. Choose the power mode that best suits you and what you want to do with your Windows 11 PC. This way you can determine what is important to you: getting the best battery life, the best performance, or a balance between the two. Before proceeding, we recommend that you update Windows 11 PC

How to determine your device power states on Windows 11

Step 1: Open CMD as Administrator in Windows 11

Step 2: Type the following command to determine the supported sleep states of your computer and press Enterpowercfg /availablesleepstates

Step 3: Confirm the supported power states on the computer:

  • Standby (S3).
  • Standby (S2).
  • Standby (S1).
  • Standby (S0 Low Power Idle).
  • Hibernate.
  • Hybrid Sleep.
  • Fast Startup.

Once you complete the steps, the system will reveal the sleeping states available on the device. You will also be able to notice the power states that are not supported.

Windows 11 power states: All you need to know

Working power state (S0)

The “Working” power state has an Advanced Configuration and Power Interface (ACPI) status of “S0.” This state indicates that the device is usable and supported hardware that is not in use can switch to a power-saving state.

Sleep (Modern Standby) power state (S0 lower-power idle).

This “Sleep (Modern Standby)” power state has an ACPI designation of “SO lower-power idle.” It is available for some System On a Chip (SoC) devices that have a low-power idle state. Devices with this power state can switch between low-power and high-power states to react quickly to certain events. If the device supports Modern Standby, it does not support S1, S2 and S3 sleep states.

Power saving state (S1, S2, S3)

The “Sleep” power state can also have ACPI S1, S2 or S3 status. In this state, computers appear offline, but system memory continues to function to allow the device to resume activity quickly. In addition, some components remain active, such as the network adapter, keyboard, mouse, and USB devices. Also available in this category is the “hybrid suspend” mode, which allows the system to create a hibernation file to preserve the current session if the device loses power during suspend.

Hibernation state (S4)

The “Hibernation” power state is described as “S4” and defines when the system appears to be off. When the device enters hibernation mode, the system saves the loaded contents in memory on the hard disk to conserve most of the power. However, some components, such as the keyboard, network adapter, and USB flash drives, continue to be turned on so that they can be used to wake up the computer. At this power, the level is also the “quick boot” state. The quick boot state works similarly to hibernation, but in this power state any connected user is logged off, then the system creates the hibernation file, saving its contents in memory on the hard disk, and then the computer shuts down. This approach speeds up the boot process.

Soft Off Power State (S5)

The “Soft Off” power state has an ACPI designation of “S5” and describes the state between complete shutdown and the boot cycle.

Mechanical Off state (G3)

The “Mechanical Off” power state has an ACPI designation of “G3” and defines when the device is turned off.

Final Words

We hope you enjoyed our article on how to Control Power Saving States in Windows 11. This article explains all the possible power states, but some of them (S0 and G3) will not be listed in the output of the command, even though they are supported by the computer hardware. If you liked our article, please share it with others.


I hope you understand this article, How to Check Power States on Windows 11.

James Hogan
James Hogan is a senior staff writer at Bollyinside, where he has been covering various topics, including laptops, gaming gear, keyboards, storage, and more. During that period, they evaluated hundreds of laptops and thousands of accessories and built a collection of entirely too many mechanical keyboards for their own use.


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