On the other hand, there are useful short-cut key you should use:
The VM Workstation application allows virtual machines to run in '''windows mode''' or '''full screen mode''' which is toggled by pressing the key combination: '''ALT-CTRL-ENTER'''. The : Toggles the VM Workstation Toolbar (displayed on right-hand side) can be accessed while in application window between '''full screen mode''' when the '''mouse pointer is at the top of the virtual machine display'''.
You can press the key-combination '''ALT-CTRL''' in order to return to your '''host computer system'''.