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Genevievelover's avatar
Genevievelover
Tin Contributor
Jun 08, 2026

Windows System Will Not Go To Sleep

I am having a frustrating issue where my Windows computer will not go to sleep no matter what I try. When I click on the Sleep option from the Start menu, the screen might turn off for a second, but then the computer immediately wakes back up or just stays on with the fans still running and the power light still solid. I have already checked my power settings in Control Panel, made sure that no devices like my mouse or keyboard are allowed to wake the system, and even run the powercfg -lastwake command in the terminal, which showed something about a network adapter waking the PC. Has anyone else dealt with this problem, and what step-by-step solution finally fixed it for you? I would really appreciate any advice you can offer. Thank you.

3 Replies

  • Hello,

    Please try this:

    Open Device Manager, right click your WiFi/network device/driver, and select Properties. Switch to Power Management tab, uncheck 'Allow the computer to turn off this device to save power' option. 

    Hope this helps!

  • Cameronsbo's avatar
    Cameronsbo
    Copper Contributor

    You're definitely not alone with this one, and you've already done the hardest part by using powercfg -lastwake to trace it to your network adapter. The good news is that the fix is usually pretty straightforward once you know exactly where to look.

  • Cyruskuiib's avatar
    Cyruskuiib
    Copper Contributor

    You've already done the most important first step by running powercfg -lastwake and identifying that your network adapter is the culprit. This is a very common issue, and there are several reliable ways to stop it.