Optionally on the Ready to Configure page, you can uncheck the Start the synchronization process as soon as configuration ...

Optionally on the Ready to Configure page, you can uncheck the Start the synchronization process as soon as configuration completes check box. If you do this, the wizard will configure sync but will leave the task disabled so it will not run until you enable it manually in the Task Scheduler. After the task is enabled, synchronization will run every three hours.