How to shut down windows 7 or windows 8, 8 1 and window 10 in just one click

To shut down or power off a computer is to remove power from a computer&main components in a controlled way. After a computer is shut down, main components such as CPUs, RAM modules and hard disk drives are powered down, although some internal components, such as an internal clock, may retain power. In Microsoft Windows, a PC or server is shut down by selecting the Shutdown item from the Start menu on the desktop. Options include shutting down the system and powering off, automatically restarting the system after shutting down, or putting the system into stand-by mode. There is also a shutdown command that can be executed within a command shell window. shutdown.exe is the command-line shutdown application(located in %windir%System32shutdown.exe that can shut down the user&computer or another computer on the user&network. Different parameters allow different functions. More than one parameter can be used at a time for this command. In macOS the computer can be shut down by choosing "Shut Down…" from the Apple Menu or by pressing the power key to bring up the power management dialog box and selecting button "Shut down". An administrator may also use the Unix shutdown command as well. It can also be shut down by pressing [Alt]+[Command]+[Eject optical disc on optical drive] but this will not prompt the user anything at all. In Unix and Linux, the shutdown command can be used to turn off or reboot a computer. Only the superuser can shut the system down. One commonly issued form...