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I'm running VirtualBox with Windows Vista as host OS and Windows Server 2008 as guest OS. To login to Windows Server I have to press Ctrl+Alt+Delete, but my host OS reacts on that so I can not send it to VirtualBox. How can I do it?

  • on a mac host OS, with xp as the guest OS, how do you do control alt delete to log in? – user59686 Dec 19 '10 at 7:43
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Usually there is an entry in a menu somewhere. Host key+Del1 should work too, though.

If you're using Remote Desktop, then use Ctrl+Alt+End instead.


1 You should know what your host key is, but it's configurable. Mine usually was Right Ctrl.

If you want to know what your Host Key is, open VirtualBox and go to File → Preferences → Input. If you don't like the current key, you can change it to whatever you wish.

  • 1
    Just curious, how did you get the keystrokes in the answer to look like keys? I looked in the markdown documentation and couldn't see any way to do it... – nhinkle May 13 '10 at 5:15
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    @nhinkle: Stack Overflow's (and Super User's) style sheet abuses the <kbd> tag for that purpose. It's not part of Markdown. – Joey May 13 '10 at 10:04
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    @Corporate Geek, please use proper arrows when editing my posts. -> is an ugly abomination I don't want to have associated with my name. – Joey Feb 24 '12 at 18:31
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    @Pacerier: The host key is the modifier that is used for shortcuts in the VM software itself and are not passed to the VM inside. And I have no idea. – Joey Feb 28 '15 at 16:57
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    @Pacerier: Don't do that to a level where you run out of keys, then. Seriously, what's the point of this discussion? – Joey Mar 9 '15 at 7:23
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On an OS X host, try

  • control+alt/option+fn+delete or

  • cmd+fn+delete

I used the onscreen keyboard in Windows 7 which showed the guest OS receiving ctrl and alt/option, but not delete. By adding the fn key to the combination, it seems the Mac's idea of "delete" (normally like Windows' "backspace") becomes Windows' "delete".

  • There is no delete button on 13" MacBooks :( – Petr Peller Jan 21 '17 at 23:42
14

In the menu called Input, click Keyboard then Insert Ctrl+Alt+Del:

virtualbox ctrl-alt-del

A reminder of the shortcut is also visible there.

Note: In older versions it used to be in the Machine menu.

  • What if you are in fullscreen.... – Pacerier Feb 28 '15 at 15:19
  • @Pacerier: If you are in fullscreen, then the solutions of Joey and Christian are more convenient, you just have to remember the keys combination. – Nicolas Raoul Mar 1 '15 at 8:04
  • In more recent versions of Virtualbox, this option is found in the "Input" menu rather than the "Machine" menu – Henrik Kjus Alstad May 10 '16 at 8:01

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