Putting your Windows PC to sleep while not in use is an excellent method to extend its battery life. You can wake your PC at any moment by moving the mouse, pressing the power button, or pressing a keyboard key. However, are you unsure what device is waking up your PC when it is in Sleep mode? Windows gives you total control over devices that awaken your PC from sleep. This post will show how to check which devices can wake your PC from sleep mode.
Check Which Devices Are Capable of Waking Your PC From Sleep Mode
So, let us discuss how to check which devices can wake your PC from sleep mode. Note that not all devices linked to your PC can wake Windows out of sleep mode. To find out which of your devices supports waking the PC, use Command Prompt or Windows PowerShell to check.
- Type Windows Terminal into the Windows search bar, right-click on the result, and click Run as administrator to open it.
- Click on the Yes button on the User Account Control.
- Type or copy and paste the following command and press Enter.
powercfg -devicequery wake_from_any
It will show a list of your system’s devices capable of waking up Windows from any sleep state.
Check Which Devices Are Allowed To Wake Your Windows From Sleep Mode
This method will show you which devices can wake your windows PC from sleep mode. You can find out using Windows Terminal, Command Prompt, or PowerShell. Here is how to go about it:
- Type WT or PowerShell in the Run prompt (Win + R)
- Press Ctrl + Shift + Enter to Run as administrator
- Type or copy and paste the following command and press the Enter key.
powercfg -devicequery wake_armed
It will display a list of devices that can wake your PC from sleep.
Related: Fix: Windows not going to Sleep Mode
How To Find Out What Woke Your PC From Sleep Mode
Your Windows PC may frequently wake up on its own when it is in sleep mode. The most frequent reason for your PC to wake up is one of the connected devices or processes. Windows can tell you precisely what woke your PC from sleep mode.
- Open Windows Terminal or Command Prompt with admin permission
- Copy and paste the following command and press the Enter key.
When you execute the above command, Windows will notify you of the device or process that awoke your PC from sleep mode. Windows OS does not save a wake history log if you see something like Wake History Count – 0. It might occur if you rebooted your PC recently.
Allow or Deny Permission to a Device To Wake Your PC From Sleep Mode
Once you know the devices that are waking up your PC without your permission, you can take the appropriate actions to stop them. Check out the following steps to find out how to allow or deny permission to a device to wake your PC from Sleep Mode:
- Open Device Manager from the Win + X Context menu
- Find the device you want to configure, right-click on it and select the Properties option.
- From the Properties window, click on the Power Management tab.
- Check or uncheck the Allow the PC to turn off this device to save power option to allow or deny permission to wake your PC from Sleep Mode.
- Click OK to save the changes.
You can now understand which devices can awaken your PC from sleep and how to stop them from doing so. Nevertheless, switching to sleep mode on your PC might not always suit your PC. It is always better to shut down your PC entirely in certain situations. So, as mentioned in this article, you can check which devices can wake your PC from Sleep Mode using these methods.
Can Wake-On-Lan Wake My PC From Sleep Mode?
Yes, Wake-on-LAN (WOL) is a feature that allows your PC to be woken up from sleep mode remotely over a network. It can be configured through the motherboard’s BIOS or UEFI firmware settings and depends on the motherboard and the network adapter hardware support.