How-To

How to Check a PC’s Supported Power Features on Windows 11

Want to configure your Windows 11 power settings? You’ll need to know what options are available (and how to understand them).

One of the (many) benefits of Windows 11 is the support it offers for multiple power states. Windows 11 can handle many states as described by the Advanced Configuration and Power Interface (ACPI) open standard specifications.

Thanks to ACPI, you don’t need to worry about power states if you can turn your PC on, off, or restart it. It’s also essential for some users to manage when it goes to sleep, shut down or reboot the PC, or put it in hibernate mode.

Still, you might find yourself in a situation where you must check the PC’s supported power features on Windows 11. Here’s how to do it and what they mean.

How Do I Check Power Settings in Windows 11?

To see which power features are supported by your PC’s hardware, you can run a command via PowerShell and get the results instantly. Use the following steps to get the information about power settings you need.

Check Windows 11 Supported Power Features

  1. Press the Windows key on your keyboard to open the Start menu.
  2. Search for PowerShell and select Run as Administrator from the right column.Run Windows PowerShell as Admin
  3. With PowerShell open, type in the following command and hit Enter on your keyboard:
    powercfg /availablesleepstates

    Powercfg command

  4. After running the command, you’ll get a list of the supported power states on your computer.List of Supported Power States on Laptop

What Power State Codes Mean

Now, it’s important to note that the power codes you receive will vary between devices. You’ll also notice that some power states aren’t supported when you look at your list. However, you’ll still be able to see what’s not supported.

Here is a list of the power states and what you need to know:

  • S0 (working power state) is the working power state and indicates the device is usable.
  • S0 (low-power mode) means some System on a Chip (SoC) devices feature low-power idle, however, systems can quickly switch from low to high-power states in specific events.
  • S1, S2, and S3 (Sleep power state) are low-power sleep state capabilities. Computers will appear offline, but memory continues working, allowing the PC to resume quickly. Also, peripheral components like the keyboard, mouse, and USB drives will remain active.
  • S5 (Soft Off power state) indicates a state where the device will fully power down during a restart.
  • G3 (Mechanical off power state) describes when the device is shut down.

Find Your Power Options on Windows 11

This process may seem like some dry information to get from your Windows 11 PC. However, they describe how your system handles power which can be helpful in many instances. For example, if nothing else, you could need the data to provide to your IT person or when you call the manufacturer’s help desk.

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