Some users want to use hibernate to continue work on system without loading all kind of apps without starting app again and again on every time system power on.
Because if someone uses the same system for any other reason, there is chance to click Shutdown as usual they do on another system.
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PolicyManager\default\Start\HideShutDown
We can hide shutdown option on above way in Registry Editor.
Click Win + R to open Run window, and type "regedit" and click OK.
Then go to registry path mentioned in the below,
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PolicyManager\default\Start\HideShutDown
Before that, please check shutdown shown in power button.
Please go to registry like as below and do double click on value option in the right panel. In default, it is in 0 value. Please change it to 1.
Once you did above, it will reflect immediately on power button.
Please confirm like below,
That's it. Cool ...!!!
Note: This is only used for hide option from power button. It does not mean that it will not prevent from shutdown completely in Windows.