This option can be used to avoid waiting for long downloads to finish.
Some installation programs also require that your computer restart afterwards. When this option is set, the program will display a Restart Countdown, and at the end of the countdown period, the program shuts down and restarts the computer automatically, even if other programs are still running or you have unsaved documents open. If you have chosen to run downloaded programs automatically, and you do not think that you will be present when the download finishes, save all your open documents and close all running programs before you leave the computer to prevent possible data loss.
To run a program automatically
In the Program Download Status window, select the Run program automatically when download completes box either before starting the download or at any time during the download.