Awesome Keyboard Shortcuts

Windows + m
              It minimizes all the open windows.

Alt + space + n
           It minimizes the current window.

Alt + space + x
         It maximizes the current window.

Alt + space + r
           It is used to resize or restore the window.

Shut down the windows just by pressing 3 keys
                windows key, u and u.

Alt + Tab
         It is used to shift between windows.