windows 8 won't wake up from sleep mode

Question

I have a Dell desktop with Windows 8 and it will wake up from sleep mode if not in use for awhile but if left for longer periods it goes into sleep mode and will not wake up. I have tried to wake it

• touching mouse
• touching power button
• using windows key + C
• no results unless I do a hard power down

Now it has started to download windows updates without installing them

The best I saved for last...it will not shut down it only goes into Power Save mode

very frustrating...suggestions please?

Answer 1

Was having this same problem and I fixed it.  Check to make sure it's actually not waking!  In my case the computer itself was waking but the display adapter was not.  I could hear the processor fan come back on, the hard drives spin up, but nothing on my screen.  In my BIOS, there was an option to not let the integrated graphics adapter sleep.  It was called "RC6 Render Standby" and I turned it off -- fixed!

Answer 2

Hi,

Welcome to Microsoft Community and thank you for providing us an opportunity to assist you with the issue.

As per the issue description, the Computer is not waking up from sleep mode and when you shutdown it goes to power saver mode. We would like to a gather little information on this issue.

1.      Did you make any changes to the computer prior to this issue?

2.      Do you get any error message or error code? If yes, what is the error message or error code?

3.      When you say “Now it has started to download windows updates without installing them” what are you referring to?

4.      What is the make and model of the computer?

Let’s try few methods and check if these help in resolving the issue with the sleep mode.

Method 1: Run Power troubleshooter and check if this helps.

a.       Press Windows + W key on the keyboard.

b.      Type troubleshooting in the search tab and press Enter.

c.       Click View all on left panel**.**

d.      Click Power, new window will popup.

e.       Follow the on screen instructions.

Method 2: Reinstall the display adapters.

Step 1: uninstall the display drivers.

a.       Press Windows + X, Click Device Manager.

b.      Expand Display Adapters.

c.       Check if the name of the graphic card is the list.

d.      Right click on the Display Adapter’s name and click uninstall.

e.       Once you uninstall the drivers it will prompt to restart the computer, do not restart the computer.

f.        It will take default drivers in the computer.

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Step 2: Reinstall the drivers.

Please download the drivers from the computer Manufacturer’s website and reinstall the drivers.

Method 3: You may create a new power plan.

Please refer to the link for FAQs on power plan.

http://windows.microsoft.com/en-IN/windows-8/power-plans-faq

Hope this helps. If the issue persists or any Windows related queries or issues, please get back to us. We are here to assist you.

Answer 3

I'm having this issue with my brand new Samsung Ativ T500, the troubleshooting tips don't make a difference

Answer 4

I have a new HP Envy6 and have been experiencing the same issue. Took my computer back to Geek Squad and they did a complete restore of the PC and the issue still persists. They did a hardware performance check and said it had to be Windows 8. Hopefully they will push an update to correct this issue soon.

Answer 5

Just bought brand new Lenovo K410 with window 8 and I have the same problem.  I tried the above 2 methods and still don't work.  The only way to wake the PC up is hard power down then turn on again.  Please help.