So you have just got elementary OS installed but now what? Here I have listed some things to do after installing Update your system The most sensible thing to do after installing any Linux distro is to update your system. This is for many purposes including security so is essential we do this. So lets open a terminal and then run the below command; Code (Text): sudo apt-get update && sudo apt-get upgrade Enable PPA By default in Loki default we cannot add PPA. This extra layer of security could become a nuisance for some especially considering the very latest software is mostly available via PPA. You can enable PPA in Loki very easily. So lets go back to the terminal and run the below; Code (Text): sudo apt-get install software-properties-common Install elementary Tweaks elementary Tweaks tool makes installing themes in elementary OS a much easier task. You can also change fonts, animations, icons and much more. Once installed this will appear in your settings page. To install lets run the below commands; Code (Text): sudo add-apt-repository ppa:philip.scott/elementary-tweaks sudo apt-get update sudo apt-get install elementary-tweaks Install codecs and enable DVD playback elementary OS by default does not provide the multimedia codecs we need to to play popular file formats. To enjoy your favourite movies, music etc, open up a terminal and run the below; Code (Text): sudo apt-get install ubuntu-restricted-extras sudo apt-get install libavcodec-extra sudo apt-get install libdvd-pkg Install TLP (Laptop users only) TLP is one of my favourite tools especially to stop overheating my laptops. Once installed the daemon will help regulate the CPU temperature and also should help prolong battery life. Lets open a terminal and run the below; Code (Text): sudo apt install tlp tlp-rdw