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Tech News Today
Home » Windows

PC Keeps Turning on From Sleep—5 Ways to Fix It

Bishwo TamliBy Bishwo TamliJuly 13, 2023
pc keeps turning on from sleep

You may prefer to put your PC to sleep mode rather than shutting it down. However, when you check it later, your computer is automatically on again. This can happen now and then if your computer is trying to perform some important tasks like update or backup.

However, if it happens too frequently or for no reason, then you might have a problem at hand. This issue can be caused by things like scheduled tasks, false input from devices, and the Wake on LAN feature. However, these software problems are pretty common and easy to fix.

Table of Contents

  • Troubleshoot with Event Viewer
  • Disable Devices From Waking Up Your PC
  • Disable Wake Timers
  • Disable Automatic Maintenance
  • Disable Wake on LAN

Troubleshoot with Event Viewer

First of all, you can diagnose this issue from Event Viewer to see what caused your PC to automatically wake up from sleep. So, here’s how you can do so.

  1. Open the Run dialog box.
  2. Type eventvwr and press Enter to open Event Viewer.
    eventvwr in run
  3. Go to Windows Logs > System.
  4. Right-click System, and select Filter Current Log.
    event viewer filter current logs
  5. Next to Event sources, select Power-Troubleshooter from the drop-down menu and press Enter.
    filter current logs power troubleshooter
  6. Click OK.
  7. View the recent logs of when your Computer woke up from sleep mode and what caused it to do so.
    event viewer wake source

Now, you will usually get three types of sources for why your PC woke up from sleep. It might state the power button, in which case, you manually turned on your PC from sleep.

It can also show a device that wakes up your PC or a scheduled task. Read more below to see how you can fix these.

Disable Devices From Waking Up Your PC

If you see a peripheral device like a mouse or controller show up in the Event Viewer, it might be a false input that caused your PC to automatically wake up. Some faulty input devices can cause these kinds of issues. So, you can simply unplug them to stop those devices from waking up your computer. 

If it is inconvenient to unplug your peripheral device or if it is an internal device like a network adapter card, I’ll show you how you can disable them from waking up your PC.

  1. Press Windows + R to open the Run box.
  2. Type devmgmt.msc to open Device Manager.
    devmgmt msc on run
  3. Locate the device that showed up in the Event Viewer. (If you can’t find the device in Device Manager, you can search it online to see which category it falls under.)
  4. Right-click the device and select Properties.
    device manager properties
  5. Go to the Power Management tab.
  6. Deselect the Allow this device to wake the computer option.
    power management disable allow this device to wake up the computer
  7. Click OK.

Disable Wake Timers

Wake timers are basically scheduled tasks that are allowed to wake up your PC from sleep to perform their configured action. These wake timers range from software updates to backups that get performed during your off hours.

Anyway, let’s first see all the wake timers that are currently active on your computer.

  1. Press Windows + R shortcut to open the Run Utility.
  2. Type cmd and press Ctrl + Shift + Enter to open Elevated Command Prompt.
    cmd on run
  3. Enter the command powercfg -waketimers.
    powercfg waketimers
  4. This will show all of the active scheduled tasks that are allowed to wake up your computer. It will also show the location of the wake timer, so make sure to note it.

Now, you can go to Task Scheduler to manage these wake timers so that your PC doesn’t wake up automatically during sleep mode.

  1. Open Run Utility.
  2. Type taskschd.msc and press Enter to open Task Scheduler.
    taskschd on run
  3. Click on Task Scheduler Library at the left sidebar.
  4. Now, locate one of the tasks that showed up in wake timers. 
  5. In my case, it was the UpdateOrchestrator Scheduled Wake to Work task that was waking up my computer. So, I’ll go to Task Scheduler Library > Microsoft > Windows > UpdateOrchestrator.
  6. Right-click the task and click on Properties.
    scheduled wake to work properties
  7. Go to the Conditions tab, and unselect the Wake the computer to run this task option.
    disable wake the computer to run this task
  8. Click OK.
  9. Do the same for all the other wake timers that you don’t want to be able to wake your PC up. If a wake timer performs an important task, you can go to the Triggers tab and change its schedule so it doesn’t conflict with your off hours.

If you don’t want to individually disable wake timers on Task Scheduler, you can directly disable the Allow Wake Timers setting. This will stop all scheduled tasks from being able to wake your PC.

  1. Launch Run Utility.
  2. Type control and press Enter to open Control Panel.
    control in run box
  3. Next to View by, make sure Large icons is selected.
  4. Go to Power Options.
    control panel power options
  5. Click on Change plan settings next to your active power plan.
    change power plan setting
  6. Select Change advanced power settings.
    change advanced power settings
  7. Double-click on the Sleep tab and expand the Allow wake timers option.
  8. Make sure to set all the parameters under Allow wake timers to Disable using the drop-down menu.
    disable wake timers
  9. Click on Apply and OK.

Disable Automatic Maintenance

Automatic maintenance is a scheduled task for your Windows computer that does a variety of things. It will perform software updates, security scanning, and system diagnostics. While this task doesn’t have permission to wake up your PC by default, you can assign this permission to it.

So, if this was enabled by accident or by some other software on your computer, you should check to make sure it is disabled.

  1. Launch Run Utility.
  2. Type control and press Enter to open Control Panel.
  3. In the search bar, type automatic maintenance.
  4. Click on Change Automatic Maintenance settings from the search result.
    change automatic maintenance setting
  5. Make sure the Allow scheduled maintenance to wake up my computer at the scheduled time option is unselected.
    disable allow scheduled maintenance to wake up from computer from sleep
  6. Click OK.

Disable Wake on LAN

Wake on LAN is a feature on computers that allows them to automatically wake up from sleep mode from another device on the network. If you have enabled this feature, your computer might automatically wake up from sleep whenever a device joins your network. So, let’s see how you can disable it.

  1. Open the Run box using Windows + R.
  2. Type devmgmt.msc and press Enter to open Device Manager.
  3. Double-click on Network adapters.
  4. Right-click your network adapter driver and select Properties. (If you’re connected via Ethernet, right-click your ethernet driver instead.)
    device manager network adapter properties
  5. Go to the Advanced tab and select Wake on Magic Packet.
  6. Under Value, select Disabled from the drop-down menu.
    disable wake on magic packet
  7. Click OK.
how-to
Bishwo Tamli

I'm a tech enthusiast, and I've always been troubleshooting errors by myself for years. I also like keeping up to date with the latest technology and gadgets.

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