Just like other operating systems, Windows has the option to prohibit selected users from shutting down a computer. Options include shutting down the system and powering off, automatically restarting the system after shutting down, or putting the system into stand-by mode. In Microsoft Windows and ReactOS, a PC or server is shut down by selecting the Shutdown item from the Start menu on the desktop. The above is from Windows 7 (this has now moved to the same window in Windows 10). Shutdown options have been moved from a separate dialog box to the start menu, in Windows Vista and later versions of Microsoft Windows.
