Windows 10: Sleep while PC power is cut off?

So this was a routine method for me: When going to sleep, I put my PC to sleep too and after waiting a few minutes turned off power switch on the back of my PC so my cat couldn't wake the PC etc.

In the morning when turning it in back on and pressing a button on my keyboard the system would continue where I left it off last night. Since windows version 20H2 this won't work anymore. When I do this, my PC won't continue in the morning but rather boot up fresh as if it was powered down previous night.



Can I bring back the sleep while power is cut off feature or what was it in the first place?

Thank you in advance for the reply.

submitted by /u/SirMephistoPheles1
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:)

 

My PC was shutdown suddenly by power cut off so now it had some errors

Hi,

I understand your concern and will assist you to resolve the issue.

• 
  Have you updated all the Windows and optional updates?
  
• 
  Have you updated all the Drivers?
  
• 
  What is that exact error message?
  

I suggest you to follow the steps below and check if it helps.

Step 1: Run the
Power troubleshooter.

Windows 10 has a built-in troubleshooter to check and fix issues with power. I would suggest you to run this troubleshooter to check if the issue is with your Power.

Refer these steps:

• 
  Press Windows key +X, select
  Control panel.
  
• 
  Change the view by option
  on the top right to Large icons.
  
• 
  Click on troubleshooting
  and click on the view all option on the left panel.
  
• 
  Run the Power
  troubleshooter.
  

Step 2: Change the “Power plans” settings.

A power plan is a collection of hardware and system settings (like display, sleep, etc.) that manages how your PC uses power. The power plans you can use depend on the kind of PC you have.

http://windows.microsoft.com/en-us/windows/power-plans-faq#1TC=windows-8

Keep us posted on this issue so that we can assist you better.

 

Sleep

Hi,

This may happen due to its power plan. A power plan is a collection of hardware and system settings that manages how computers use and conserve power. For this, we suggest that you reset and restore power plans to its default. kindly follow these steps:

• Open the Command Prompt (Admin).
• Copy and paste the command below into the command prompt, and press
  Enter:
  • powercfg -restoredefaultschemes
• Close the Command Prompt window, and then restart your PC to apply the changes.

After that, go to Power & sleep settings
by typing it into the Windows Search. Check the When plugged in, PC goes to sleep after
settings is set to Never.

Let us know if the steps above helped you to resolve the issue.

 

How to wake a computer out of Sleep mode when AC power is restored?

I found a solution.

The four steps below will cause the PC to enter sleep mode when the UPS switches to battery. When AC power is restored, the PC will resume from Sleep. Also, should the PC's power get cut (while in Sleep mode), when power is restored, the BIOS setting ensures
it will power back on.

Step 1:

Make sure your BIOS is set to always turn the system on, should the power ever get cut. Look for "Restore Power After AC loss", or similarly named setting, and set this to On.

Step 2:

Configure the Windows power option to put the computer to sleep after X minutes. Set
Control Panel / Power Options / Put the computer to sleep: 5 minutes.

Step 3:

Change the advanced power options to also put the computer to sleep for Critical and Low battery states.

Step 4:

Under Device Manger, right click on HID UPS Battery and then under the
Power Management tab check Allow this device to wake the computer.