The system check list is designed to help guide you through the initial setup of your system; this is limited to super users.
Simply work your way through the list in any order you choose and click/press 'Done' once your happy that everything is setup.
Should you need extra guidance or direction you can open the expanded menu against each item, the 'Down' arrow, and click/press:
(Pictured Below: The system check list)
(Pictured Below: The system check list)