Windows 10: How to shutdown when the sleep key on your keyboard is pressed

I prefer to always shutdown my computer when I’m not using it and since my keyboard has no SHUTDOWN key, I want to use the SLEEP key instead. So here are the steps to do that.

1. Hit the Windows + R keys on your keyboard and type regedit. Click OK and a window should pop asking you “Do you want to allow this app to make changes to your device?” Click Yes.
   
2. With the Registry Editor running, open HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Power\PowerSettings . Click on every folder under it until you find the one that contains the FriendlyName: @%SystemRoot%\system32\powrprof.dll,-251,Power buttons settings.
   
3. Click the arrow on the left of this show all the folders under it. Click on each folder until you find FriendlyName: @%SystemRoot%\system32\powrprof.dll,-255,sleep button action . Expand the folder and click DefaultPowerSchemeValues. There are 3 folders under this folder and each “Value data” should be changed from 1 to 3.
   
4. Press the Windows key and type “edit power plan”. Click Open.
   
5. Finally, click on Restore default settings for this plan and click Yes. That’s it. Press the SLEEP key on your keyboard and your PC should shutdown immediately. Don’t forget to save your work before you do that.

Have a nice day! 🙂

source: https://social.technet.microsoft.com/Forums/en-US/e517a8cc-96be-47ee-978e-ce89bb8bec40/sleep-button-action-gt-shut-down-how?forum=w7itprogeneral