When playing in full-screen mode, it's really handy to have this list where you can get to it... Key combination Description
  • Host key+L Restores Virtual PC Console from a minimized state. Moves Virtual PC Console to the foreground.
  • Host key+I Installs Virtual Machine Additions.
  • Host key+ENTER Toggles a virtual machine between full-screen mode and window mode.
  • Host key+DELETE Sends CTRL+ALT+DELETE to the virtual machine operating system.
  • Host key+P Pauses or resumes the virtual machine, depending upon its current state.
  • Host key+R Resets the virtual machine.
  • Host key+F4 Closes the virtual machine.
  • Host key+C Copies the selected items.
  • Host key+V Pastes a copied item.
  • Host key+A Selects all.
  • Host key+E Opens the virtual machine settings.
  • Host key+DOWN ARROW Minimizes the virtual machine.
  • Host key+LEFT ARROW Switches to the previous virtual machine when running multiple virtual machines, unless you are using full-screen mode.
  • Host key+RIGHT ARROW Switches to the next virtual machine when running multiple virtual machines, unless you are using full-screen mode.
The default host key is the Right Alt button. It sure makes things a lot easier.