System Keys
The following keys can be used from any window, regardless of the application you are using.
Key(s) Function
Ctrl+Esc Switches to the Task List.
Alt+Esc Switches to the next application window or minimized icon, including full-screen programs.
Alt+TAB Switches to the next application window, restoring applications that are running as icons.
Alt+PrtSc Copies the entire screen to the Clipboard.
Ctrl+F4 Closes the active window.
F1 Gets Help and displays the Help Index for the application. (See Help Keys.)