I am using VirtualBox-5.1 on Fedora 25. And every time i want to switch tabs in guest os , the vbox is switches with host. Simply any alt+tab , ctrl+alt+down_arrow not working inside Vbox guest os. What should i do?


All key combinations containing CTRL+ALT work by replacing CTRL+ALT with HOST, HOST is the host key of VirtualBox and it is the right CTRL key by default (Your current one should be displayed at the bottom right of your VM window).
ALT+TAB works by simply pressing ALT+TAB while having the guest os window focused, if it doesn't work press HOST to change the focus for ALT key combinations to the guest and vice versa.

  • 1
    when i used HOST key with right_ctrl+alt+tab it shows two menu. 1.windows 2.top bar . But not switching inside VirtualBox – deepak Jul 22 '17 at 11:56
  • Why right_ctrl+alt+tab? HOST key should replace CTRL+ALT, so there can't be ALT inside your key combination and for using ALT+other_key_except_CTRL going in full screen should work but then no HOST key. – testeaxeax Jul 22 '17 at 15:09
  • I done fullscreen in guest OS. Firefox was running on my host . Then i used alt+tab inside guest but the guest os pannel switched with firefox. this is happening. So tell me how to fix this – deepak Jul 23 '17 at 8:23
  • You can switch the focus for ALT key combinations between host and guest by pressing HOST, so simply press HOST once and then try ALT+TAB. – testeaxeax Jul 23 '17 at 18:19
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    no. not working. – deepak Jul 23 '17 at 18:30

Well, I know this is kinda old but it is still occurring, hopefully it will help others.
Maybe this problem is related to an upgrade of the system or some other similar system features change.

In overall, to restore these two (or other more) features, you may do it manually by:

1.switch tabs (actually windows applications) in guest os:

  • go to System Settings.
  • choose Keyboard.
  • in Shortcuts tab, go to the Navigation choice, there, go down to switch applications and click on it then define your shortcut (in your case press Alt+Tab).

You can also configure other shortcuts such as minimizing/maximizing the current window by going (from the 3rd point) into the Windows tab. Where you will find a set of features to configure.
Best regards,

  • You mean setting to ALT+Q or similar, since ALT+Tab will go to the host. Even so, however, the rest of the hotkeys, e.g start-key, alt+F_keys remain non functional (e.g going to host) – chefarov Nov 10 '19 at 9:04

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