id summary reporter owner description type status component version resolution keywords cc guest host 11051 Windows Button[Key] Host/Guest mix-up in fullscreen => Fixed in SVN hackentrick "I'm running Windows XP as guest with Virtual Box 4.2 on a W2K3server host. I usually start my virtual machine via CLI in full screen (-- fullscreen). When I press the Windows button/key as a first action in the virtual machine, the ''Start Menu'' of the host (Win2K3) pops up. If I do the same, with the same guest but started in windowed mode the ''Start Menu'' of the guest (WinXP) pops up. It seems that the keyboard is still ""connected"" to the host by booting the guest in full screen. After a single mouse click (e.g. on the Desktop) the keyboard is ""connected"" to the guest. I did already open a new Topic in the Forum -> https://forums.virtualbox.org/viewtopic.php?f=6&t=52015 Please find logs attached: - first boot windowed mode - second boot fullscreen mode " defect closed other VirtualBox 4.2.0 fixed Windows Windows