https://learn.microsoft.com/en-us/windows/win32/api/winreg/nf-winreg-initiatesystemshutdowna?redirectedfrom=MSDN
InitiateSystemShutdownA function (winreg.h) - Win32 apps | Microsoft Learn
Initiates a shutdown and optional restart of the specified computer. (ANSI)
functionhappsmicrosoftlearn