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Lawrencecem's avatar
Lawrencecem
Iron Contributor
Mar 12, 2025

PC wakes up from sleep mode almost instantly

I want to put PC in sleep mode but it keeps turning back on almost instantly. Been having this issue for several weeks but before that it never did this.

I ran the command prompt and did the "powercfg/lastwake" and it's showing this text below as the reason it's turning back on. Anyone know how to resolve this issue and what this means?

2 Replies

  • Open Task Scheduler (you can search for it in the Start menu). Look for any tasks that are set to wake the computer to run. You can find this under the Actions tab for the task. If you see any tasks that require waking the computer, you can either disable that option or the task itself if it's unnecessary.

  • CoyoteSpirit's avatar
    CoyoteSpirit
    Iron Contributor

    1. Check the Wake Up Timer
    Open Device Manager, expand System Devices, and locate Wake Up Timer.
    Right-click Wake on Timer, select Properties > Power Management, and uncheck “Allow this device to wake the computer”.
    2. Disable Wake on Network
    In Device Manager, expand Network Adapters, right-click the network card, select Properties > Power Management, and uncheck “Allow this device to wake up the computer”.
    3. Check the Task Scheduler
    Open Task Scheduler and check if any tasks are set to wake up the computer.
    Right-click the relevant task, select Properties > Conditions, and uncheck “Wake the computer to run this task”.
    4. Update or Rollback Drivers
    Open Device Manager and check if there are any devices with yellow exclamation marks.
    Update or reinstall the driver (give priority to the official website driver).
    If the problem occurs after updating the driver, try to roll back to the previous version.
    5. Check the power settings
    Open Control Panel > Power Options > Change Program Settings > Change Advanced Power Settings, find Sleep > Allow Wake Timer and set it to Disable.

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