Evie Summers
If your computer keeps waking up from sleep mode, there are several ways to troubleshoot and fix the problem. Sleep mode is designed to save power when you're not using your computer, but sometimes, your PC may randomly wake up from sleep mode due to various reasons. This can be caused by a USB device, a scheduled update, or a specific hardware or software issue. To change the way your PC wakes from sleep, you can adjust power settings, update device drivers, or modify sleep mode settings.
How to change the way a PC wakes from sleep
| Characteristics | Values |
|---|---|
| Operating System | Windows 10, Windows 11 |
| Problem | PC wakes up randomly from sleep mode |
| Solutions | Use Windows Update's built-in tools to schedule updates and reboots, change active hours, or defer updates; change power settings in Windows to not go into Sleep mode when plugged in; adjust power settings to allow mouse or keyboard to wake the computer; disable USB selective suspend settings; check and adjust BIOS power management settings; check for software conflicts; reboot the computer |
| Commands | cmd; rundll32.exe powrprof.dll,SetSuspendState |
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What You'll Learn
Identify the cause of the issue
If your PC wakes up from sleep mode unexpectedly, there are a few ways to diagnose the problem. Firstly, check if your computer is in sleep or hibernation mode. You can do this by moving your mouse or pressing any key on your keyboard. If this does not work, disconnect and reconnect the video cable. If the problem persists, restart your computer.
If your computer is in sleep mode and continues to wake up unexpectedly, open the Start menu and search for "cmd". Right-click on the Command Prompt entry and choose "Run As Administrator". Type the following command and press Enter:
Powercfg -lastwake
If you're lucky, this will give you a clear answer. For example, it might be due to a cloud backup program running a scheduled backup. In this case, you can adjust the program's settings or uninstall it to stop the problem.
In other cases, it may list a specific hardware device. To identify the offending device, remove all your USB devices the next time your computer wakes up unexpectedly. If it doesn't wake up, leave one device plugged in the next time. Keep doing this until you find the device causing the issue. Once you've found it, open the Start menu and search for "Device Manager" to address the problem.
Another potential cause of unexpected wake-ups is Windows Update. To solve this problem, use Windows Update's built-in tools to schedule updates and reboots. Set your Active Hours and defer updates until you have time to install them.
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Change power settings
If your computer keeps waking up from sleep mode, there are several power settings you can tweak to fix the problem. Here are some ways to change the power settings on your Windows 10 or Windows 11 PC:
Identify the Cause
Firstly, you need to identify what is causing your computer to wake up. Windows may tell you that a USB device is waking your computer. To identify the specific device, you can try removing all your USB devices the next time your computer is put to sleep and see if it wakes up on its own. If it doesn't, you can start plugging in one device at a time until you find the offending device. Once you've identified the problematic hardware, you can open the Start menu, search for "Device Manager", find the device, and disable the "Allow this device to wake the computer" option.
Change Power and Sleep Settings
You can change your power and sleep settings by going to Start > Settings > System > Power & Battery > Screen and Sleep. Here, you can adjust how long you want your device to wait before turning the screen off and going to sleep when you're not using it. You can also select the power mode to optimize your computer for performance or power efficiency.
Update Windows Settings
Windows Update can sometimes cause unwanted wake-ups. To prevent this, you can use Windows Update's built-in tools to schedule updates and reboots during your active hours. In Windows 10, go to Settings > Update & Security > Windows Update to pause updates or change active hours. In Windows 11, open Settings > Windows Update and click on Advanced Options to change your active hours.
Change Wake Timers
If none of the above solutions work, you can try changing the wake timers on your computer. Open the Start menu, search for "Edit Power Plan," and click on "Change Advanced Settings." Go to Sleep > Allow Wake Timers and change Battery and Plugged In to Disabled for all your power plans.
Check for Hardware/Software Issues
If your computer still wakes up randomly, there may be specific hardware or software issues causing the problem. You can open the Start menu, search for "Command Prompt," and run it as an administrator. Then, type in a command to identify the cause. Additionally, you can check the Windows Event Viewer to see all the times your computer woke up recently and what caused them.
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Update Windows
If your Windows PC is randomly waking up from sleep mode, there are a few things you can do to troubleshoot the problem.
First, you can check which devices support waking your computer by entering the following in Command Prompt: powercfg -devicequery wake_from_any. If your keyboard or mouse won't wake up your Windows computer, the issue could be USB selective suspend, which prevents USB-connected devices from working when the PC goes to sleep. To change this, open Control Panel, select Power Options, and change the advanced settings for your chosen power plan. Set USB selective suspend settings to Disabled.
You can also ensure that your keyboard or mouse can wake your computer from sleep mode by opening the Device Manager, finding your device, and going to its properties. Under the Power Management tab, check the box next to Allow this device to wake the computer.
If you're using Windows Vista and are unable to wake your computer from sleep mode, make sure you've updated to Service Pack 1 or a later version.
To prevent your computer from waking up due to scheduled updates, you can use Windows Update's built-in tools to schedule updates and reboots. Set your Active Hours and defer updates until you're ready to install them. For Windows 10, go to Settings > Update & Security > Windows Update to pause updates or change active hours. On Windows 11, open Settings > Windows Update to pause updates, and click Advanced options > Active hours to change active hours.
If you're unable to wake your computer from sleep mode using your mouse or keyboard, the issue may be with the Sleep key on your keyboard. Press the SLEEP keyboard shortcut, or press a standard key on the keyboard. Move your mouse or press the power button to wake the computer.
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Adjust BIOS settings
Adjusting your BIOS settings can be a way to change how your PC wakes from sleep mode. BIOS, or Basic Input/Output System, is a type of firmware that is installed on your computer's motherboard. It is responsible for initializing hardware and managing data flow between the operating system and connected devices.
To access BIOS settings, you will need to refer to the documentation that came with your computer or contact the manufacturer directly for instructions specific to your device. Generally, you can enter the BIOS setup by pressing a specific key when your computer first boots up, often something like 'Delete' or 'F2', and the boot screen should indicate which key to press.
Once you have accessed the BIOS settings, you can look for options related to power management and device wake-up settings. For example, you may be able to disable USB devices or network adapters from waking up your computer. Additionally, there may be settings related to waking up the computer from sleep using input devices such as the mouse or keyboard.
It is important to note that BIOS access and settings can vary significantly between different computers and motherboards. Therefore, it is always recommended to consult official sources or manufacturer support channels for specific instructions related to your device.
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Restart the computer
To change the way your PC wakes from sleep mode, you can try restarting your computer. This can help reset any incorrect settings or configurations that might be affecting your PC's sleep mode behaviour. Here are detailed instructions on how to properly restart your computer:
For Windows:
- Click on the Start menu, usually located in the bottom-left corner of your screen.
- In the Start menu, locate and click on the Power button.
- From the options that appear, select "Restart."
- If you don't see the Power button in the Start menu, you can press and hold the "Control + Alt + Delete" keys on your keyboard simultaneously and then click on the Power icon and select "Restart" from the options.
For macOS:
- Click on the Apple menu located in the top-left corner of your screen.
- From the menu, choose "Restart..."
- You can also use a keyboard shortcut by pressing and holding the "Control + Command + Eject" keys together to bring up the restart option.
For Linux:
- Depending on your Linux distribution, you can access the log-out or power options by clicking on your user icon or the power button in the bottom-right corner of your screen.
- From the menu, select the "Restart" option.
- If you're using a command-line interface, you can restart your system by typing the "sudo shutdown -r now" command and providing your password when prompted.
After restarting your computer, check your power settings to ensure they are configured to your preferences for waking up from sleep mode. You can usually find these settings in the Control Panel or System Settings of your operating system.
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Frequently asked questions
To change the way your PC wakes from sleep, you can adjust your power settings. This can be done by accessing the Control Panel or System Settings, where you can modify how your computer enters sleep mode and what actions can wake it up. For example, you can change the ''sleep after' time or enable 'wake timers'.
To wake your PC from sleep mode, you can usually press any key on your keyboard, click your mouse, or press the power button. If this does not work, you may need to adjust your power settings as outlined above.
There are several reasons why your PC might be waking up from sleep mode. It could be due to a scheduled update or reboot, a USB device, or a specific hardware device. To diagnose the problem, open the Start menu and search for "cmd", then right-click the "Command Prompt" entry and choose "Run As Administrator". Type the following command and press Enter: powercfg -devicequery wake_from_any. This should give you a clear answer as to what is causing the issue.
