Tegra Note 7 running lollipop 5.1 has lost the full notification bar

[AC Question]

The navigation icons for home and recent apps are missing at the bottom of the home screen and only a small notification bar shows at the top displaying time, date, wifi,battery and user icon.

How can I change back to the default?

 

[B. Diddy]

Welcome to Android Central! Are you running the stock launcher or a 3rd party one (like Nova Launcher)?