Brief information
Windows PCs waking up from sleep randomly is a common problem; use Command Prompt or Event Viewer to find out what is waking your PC randomly.
Common fixes include changing the wake timer, changing device settings, adjusting power settings, etc.
Once configur, settings will ne to be review and reappli periodically, especially after software updates or hardware changes.
Find out what wakes up your computer
First, you ne to determine what is waking your Windows computer from sleep mode, which could be something as simple as certain connect peripherals like a keyboard, mouse, or headphones. To check this, follow these steps:
Use command line
Open the Start menu, type cmdand click Run as administrator
In the Command Prompt window, type powercfg -lastwake and press Enter. This will show you the reason why your computer woke up country email list randomly last time, such as a USB or Bluetooth device.
You can also check if the wake timer is enabl by typing powercfg/waketimers in the command prompt window and pressing Enter.
Run the above command powercfg -devicequery wake_armand press Enter to view the devices that are causing your computer to wake up randomly. The device responsible for the problem will be display in the Command Prompt window. For example, here the problem is caus by a HID-compliant mouse.
Use the Windows Event Viewer
Open the Start menu, find Event Viewer and open it as administrator.
Once Event Viewer opens, click Windows top financial sector events in 2025: your guide to success Logs on the left and right-click System before clicking Filter Current Log.
Click the Event Sources drop-down button and select Power Troubleshooting. Then click OK.
How to Fix a Windows Now you can look through the logs at the top and find the reason why your computer woke up from sleep mode randomly.
Fix 1: Change the device settings in Device Manager
Whether you use the Command Prompt or Event Viewer to determine the cause of the problem, there is a high chance that a connect facebook users device is waking up your computer.
Once you have identifi the device, right-click the Start menu and select Device Manager.
In Device Manager, double-click the name of the device that is causing the problem.
