The lab environment is designed to be used for any of the following: So I check it, so that I can switch between windows of Linux vm via Alt + Tab, and when I need to go back to Windows host, I click Host key first or use mouse.This is a follow on from my old Centos 8 post, but this time I will be using Ubuntu LTS servers running on a Linux host with VirtualBox.

When I am using Linux vm on a Windows host.Īctually most of the time I am working on the linux vm, and sometimes need to go to the Windows host.

So I uncheck it, so that never need to click Host key to get back to Linux host. In the Windows vm browser with proxy is the only thing I need most of the time, and most of the time I am on Linux host. When I am using Windows vm on a Linux host.There is a trade off, it depends on what you use the vm for to decide whether check it or not.

But, you also can't switch within windows inside the vm, via Alt + Tab any more. You can use Alt + Tab to switch to a window from host anytime, without press the Host key first. If unchecked, then vm is just treated as a simple window in host.If checked, then you need Host key to return focus to residing os, just as described above.The virtualbox Auto Capture Keyboard option If you switch back to the vm again via Alt + Tab, then vm will get focus again, then to get back to residing os, you need to press Host key again.If the vm already lose focus, then you don't need to press the Host key first, otherwise you need to press once & release, to transfer focus back to residing os.The Host key is used to transfer focus to residing os, on windows or linux it's right Ctrl by default.Click Host key once and release to let the vm lose focus, then Alt + Tab, switch to a window of residing os,.Host key + m, minimize virtualbox os window,.

Virtualbox host key change