1) To use SlideShare component, the user must install the SlideShare module and component through the Joomla administration panel extensions menu. 2) The user can then upload slides into categories. They can add, edit, publish, unpublish slides. 3) The user can add SlideShare links to menus to display slides on pages. They can configure link details and parameters like the number of slides displayed. 4) The installation process involves getting an API key from SlideShare and inputting display configuration settings.