Update and Upgrade
Once you boot into Ubuntu 12.04 you will see the Desktop; this is Unity. Before you play around with your new toys, we recommended update your pre-installed applications to the latest version. Also, bug fixes and security updates will automatically installed. Follow the instruction below and take a look to the video.
Open your terminal by typing “terminal” into Dash search field or press Ctrl+Alt+T
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# Open Terminal and type
sudo apt-get update
sudo apt-get upgrade
# then reboot your PC
[youtube id=”E8eSog_bhsk” width=”600″ height=”350″]
Now reboot your PC and you’re ready to boot in back to the all brand new Ubuntu 12.04.