This tutorial shows how to edit primary navigation menu in Drupal.
Navigation menu is controlled through Drupal administration panel so to access the menu you need to be logged in to Drupal as administrator.
When logged in using the administration menu go to Administer > Site Building > Menus > Primary Links
There you’ll see all available primary navigation menu item. You can add/delete items, change their order and settings.
For more details please check the video tutorial below