0

When I try to put my computer to sleep or hibernate, it stays on for a few minutes, and then proceeds to shut down. I have fast startup disabled, but for some reason the option to "Allow the computer to turn off this device to save power" in Device Manager is greyed out. I enabled selective USB suspending, and I did an sfc /scannow to fix any corrupted files.

It managed to sleep and hibernate a few times, but the issue returned.

Is there some way I can check which devices keep my PC awake, and ultimately result in my PC shutting down?

I'm using Windows 10 20H2

EDIT: The issue began a few months ago, so my PC was sleeping/hibernating properly for about a year. It suddenly stopped sleeping/hibernating out of the blue.

EDIT2: I have a custom-built PC, so I have no specific drivers or programs that control power. Everything is the default Windows drivers/programs/settings/etc.

Improve this question
12
  • Make sure Windows is fully up to date. Update BIOS, Chipset driver if it has one, and Power Driver. Reset Power Plan to default Balanced. Restart, set up Hibernation and try again.
    – anon
    Commented Jun 16, 2021 at 14:48
  • @John It's definitely not Windows being out of date, as the issue occurred before I updated. I updated thinking it might fix the issue, but to no avail. I don't see how the BIOS being out of date might have anything to do with my problem, but nevertheless I might have changed a setting there, so thanks for pointing out the BIOS. I don't know what a Power Driver is.
    – explodingfilms101
    Commented Jun 16, 2021 at 14:53
  • Look on the Manufacturer's Support site for Drivers for your specific machine. Power Driver should be there.
    – anon
    Commented Jun 16, 2021 at 15:01
  • @John It's a custom built PC so no power drivers except the default ones.
    – explodingfilms101
    Commented Jun 16, 2021 at 15:03
  • Similar question>>>>>superuser.com/questions/1553459/…
    – Moab
    Commented Jun 16, 2021 at 15:10

2 Answers 2

Reset to default
1

Windows goes into Hibernation after being in sleep for a period of time. This is to save you from crashing windows in case you run out of battery, or have a power failure.

Windows is NOT shutting down. It's going into hibernation which everyone thinks is shutting down.

It's suppose to do that. Here's why and how to check how long it takes before shutting down. (Actually Hibernating, NOT shutting down.)

  • Open Power and Sleep
  • click "Additional power settings".
  • click "Change when computer sleeps".
  • click "Change advanced power settings". At this point a box will pop up.
  • expand sleep
  • expand Hibernate under sleep Here change how long it takes before going into hibernation which everyone thinks is shutting down.
Improve this answer
1
  • If you read the question you would see that it stays on (ie. fans are spinning) after going to sleep, before promptly shutting down. This is not proper behaviour for Windows going to sleep. I think I can tell when a PC shuts down vs. when it goes into hibernate.
    – explodingfilms101
    Commented Jan 20 at 13:35
0

I managed to fix it (hopefully permanently) by doing the following:

  1. Ensuring all devices can be turned off by the computer (Go to Device Manager -> Properties (for each device -> Power Management -> Check "Allow this device to be turned off")
  2. I changed the power plan to the Balanced Plan, and set the plan to it's default settings.
  3. I have fast startup disabled, but I don't know if it helps or not
  4. I went to Services -> Computer Browser and set it's startup to "Automatic" (Not sure if this is what helped, nor do I know what it does, so try at your own risk)

EDIT: Also, try unplugging any USB drives. Windows may not be able to eject them properly and result in the PC not sleeping and/or hibernating. The issue returned seemingly randomly, but I realized that my USB drive may not be turning off. After removing it, I was able to sleep/hibernate normally.

Improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .