OS X El Capitan: Login Items pane of Users & Groups preferences
You can have apps, documents, or server connections open automatically when you log in to your Mac.
To open Users & Groups preferences, choose Apple menu > System Preferences, then click Users & Groups.
| List of items | Items that open automatically at login. |
| Hide column | If you don’t want an item’s windows to be visible after login, select the Hide checkbox. This option has no effect on server connections; server connections always appear in the Finder after login. |
| Item column | Icon and name of the app, document, or connection that opens automatically. |
| Kind column | Type of item (app, document, or folder.) |
| Add | To have an item open automatically at login, click the Add button To stop an item from opening automatically, select the name of the item, then click the Remove button |
| Lock | Locks or unlocks Users & Groups preferences. Click the lock icon |


