When you are finished using the computer, click +. Then select one of the following:
Logs you out of the current session and returns you to the Login dialog.
Logs you out of the current session, then turns off the computer.
Logs you out of the current session, then restarts the computer.
Saves the current memory contents to disk and shuts down the computer. When you restart, the saved memory content is loaded and you can resume where you left off.