Shutdown (computing): Difference between revisions

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{{Other uses|Shutdown (disambiguation){{!}}Shutdown}}

{{redirect|Shutdown.exe|the album|Shutdown.exe (album)}}

{{redirect|Shutdown -r|the episode of ''Mr. Robot''|Shutdown -r (Mr. Robot)}}

{{redirect|Power down|the book|Power Down: Options and Actions for a Post-Carbon World}}

{{Use dmy dates|date=August 2019}}

[[File:Windows XP Shutdown.png|200px|thumb|[[Windows XP]] shutdown dialog box]]

[[File:Windows 11 Power Options.png|200px|thumb|[[Windows 11]] power menu, opened from the [[Start menu]]]]

To '''shut down''' or '''power off''' a computer is to [[switch|remove power]] from a computer's main components in a controlled way. After a computer is shut down, main components such as [[Central processing unit|CPU]]s, [[Random-access memory|RAM]] modules and [[hard disk drive]]s are powered down, although some internal components, such as an internal clock, may retain power.

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===Microsoft Windows and ReactOS===

[[File:Shutdown Options 7.png|200px|thumb|Shutdown options have been moved from a separate dialog box to the [[start menu]], in [[Windows Vista]] and later versions of Microsoft Windows. The above is from [[Windows 7]] (this has now moved to the same window in some versions of [[Windows 8.1]] and [[Windows 10]]).]]

In [[Microsoft Windows]] and [[ReactOS]], a PC or server is shut down by selecting the {{mono|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 [[standby mode|stand-by mode]].

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| website = {{URL|https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/shutdown}}

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There is also a <code>shutdown</code> [[command (computing)|command]] that can be executed within a [[shell (computing)|command shell]] window. <code>[[shutdown.exe]]</code> is the [[command-line interface|command-line]] shutdown application (located in '''%windir%\System32\shutdown.exe)''')<ref>{{Cite news|url=https://www.cnet.com/how-to/how-to-quickly-shut-down-windows-10/|title=Shut down Windows 10 with just one click (or two)|work=CNET|access-date=2017-04-24|language=en}}</ref> that can shut down the user's computer or another computer on the user's network. Different parameters allow different functions. More than one parameter can be used at a time for this command.<ref>{{Cite web|url=https://technet.microsoft.com/en-us/library/bb491003.aspx|title=Shutdown|website=technet.microsoft.com|date=11 September 2009 |language=en|access-date=2017-04-24}}</ref>

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!Parameter

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In [[Unix]] and [[Linux]], the <code>shutdown</code> command can be used to turn off or [[Booting|reboot]] a computer. Only the [[superuser]] or a user with special privileges can shut the system down.

One commonly issued form of this command is <code>shutdown -h now</code>, which will shut down a system immediately. Another one is <code>shutdown -r now</code> to reboot. Another form allows the user to specify an exact time or a delay before shutdown: <code>shutdown -h 20:00</code> will turn the computer off at 8:00 PM, and <code>shutdown -r +1</code> will automatically reboot the machine in one minute of issuing the command.<ref>{{man|8|shutdown|die.net}}</ref>

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==External links==

{{Wikibooks|Guide to Windows Commands}}

*[https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/shutdown shutdown |{{!}} Microsoft Docs]

*[http://www.shutdown.cc shutdown.cc] {{Webarchive|url=https://web.archive.org/web/20201022042235/http://www.shutdown.cc/ |date=22 October 2020 }} – an article about various ways of automated and manual shutting down of Microsoft Windows

{{Unix commands}}