Things to do after you install any Linux Distro...
- Check For Updates/Upgrades
- Check For Driver & Multimedia codecs
- Setting Up Firewall
- Setting Up Synaptic Package Manager
- Little Bit of Customisations
NOTE It is recomended that after completely setting up your device always keep a restore point or take a snapshot of your drives using Time Shift
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https://www.youtube.com/watch?v=nG-GaK59iXI