Windows 10: PC not entering sleep using rundll32.exe powrprof.dll,SetSuspendState 0,1,0

Hi,I switched to a new Lenovo Thinkpad T15. With my previous models, I was used to putting the pc to sleep via command linesshutdown -d -t 0That command now hibernates the PC, if hibernation is enabled. Not what I want!If I disable the hibernation powercfg -h off, the psshutdown returns this error:Error shutting down system: The request is not supported.So I'm trying this command instead:rundll32.exe powrprof.dll,SetSuspendState 0,1,0When hibernation is enabled, it hibernates the PC. If I disable the hibernation powercfg -h off, I can see this error in Event Viewer, but nothing happens:U

:)

 

Anyone know a batch/script/program/exe that can put Windows 10 to sleep?

Check and make sure that your graphics card/device is using an OEM driver. Drivers for Windows 8/8.1 may work if you cannot find a driver for Windows 10. If it's using a Microsoft Basic Display driver (or something like that), sleep will not work.

Secondly, Windows 10 fully supports hibernating, and hibernation sometimes works even if sleep will not. Just in case, it may be worth following the steps below to enable hibernation:

• Right-click the Start button and click Command Prompt (Admin).
• Type the following command and press [Enter]: powercfg -h on
• Close the command window.
• Right-click the Start button and click Power Options.
• Click Choose what the power buttons do.
• Click Change settings that are currently unavailable.
• Scroll down (if needed), tick Hibernate, and click [Save changes].
• Click Start -> Power -> Hibernate to try out the new feature.

If the hibernate option is missing in steps 7 and/or 8, your laptop probably has a driver issue preventing it from using low power states.



Regarding commands, the very popular "rundll32.exe powrprof.dll,SetSuspendState 0,0,0" command on the Internet is totally invalid. It is not supposed to work, and does only inadvertently. The
SetSuspendState function expects three parameters:

• Hibernate (Boolean; Standby if false)
  
• Force (Boolean)
  
• NoWakeTimers (Boolean)
  

All would be fine and dandy if Rundll32 passed the parameters on as specified.
However, it does not. Rundll32 uses the
following preset parameters, regardless of the arguments passed to it:

• hWnd (dWord preset to the parent window specified in the start command for
  Rundll32)
• hInst (dWord preset to the loaded instance of the specified DLL)
• sCmdLine (address to string containing all the arguments you passed to
  Rundll32)
• nCmdShow (dWord preset to the start mode you ran Rundll32 with, e.g. minimized, maximized, normal, normal no focus).

All those parameters will be non-zero numbers regardless of what you specify in the command line. Therefore, any call to
SetSuspendState from Rundll32 will equal calling
SetSuspendState (True, True, True), which asks the system to force hibernate and disable all scheduled tasks that are scheduled to wake the computer up. Disabling hibernation and then asking Windows to enter hibernation is not a very good
workaround to accomplish standby.

So, here are some valid commands:

Lock
rundll32 user32,LockWorkStation

Log off
shutdown -l

Restart (requires admin)
shutdown -r -t 0

Full Shutdown (requires admin)
shutdown -s -t 0

Fast Shutdown (requires admin)
shutdown -s -t 0 -hybrid

Hibernate
shutdown -h

Standby (requires PsShutdown tool)
psshutdown -d -t 0

Unfortunately, after all the features it has, the Microsoft shutdown command is missing the standby feature! So, it you want to put your computer to sleep via command line, you'll need to install a more capable tool before you can use
the last command above:

• Download Sysinternals PsTools.
• The download should be a ZIP file. Open it and copy PsShutdown.exe to your desktop.
  
• On your desktop, right-click PsShutdown.exe and click
  Copy. Right-click it again and click Properties.
• Tick Unblock and click [OK].
  
• Open File Explorer, navigate to "C:\Windows", scroll down, right-click the
  system32 folder and click Paste.
• To enter standby, you can now use this command: psshutdown -d -t 0

 

Rundll32.dll?

Make sure to use an adminstrative command prompt.

Try this: ICACLS "c:\windows\system32\rundll32.dll" /T /grant Everyone:F or ICACLS c:\windows\system32\rundll32.dll /T /grant Everyone:F
Can't remember if it is with, or without, quotes.

But, why do all this... try FileAssassin by Malwarebytes, if you are trying to delete the files, but be careful, if you delete the Rundll32.dll files your OS may take a cr*p on you.

 

using shutdown.exe which switches duplicate the "sleep" selection

Hi Warren-Hall

to put the computer to sleep, try a shortcut to the following

C:\Windows\System32\rundll32.exe powrprof.dll,SetSuspendState standby

or

C:\Windows\System32\rundll32.exe powrprof.dll,SetSuspendState 0,1,0

if hibernate is enabled the pc will hibernate rather standby