***Steam install Warning For Xenial (16.04)***
We have seen multiple users when trying to install Steam from http://store.steampowered.com/
end up with broken package manager, with no known way to repair it as of yet.
Ending up doing a fresh install of Xenial.
Reference:
http://ubuntuforums.org/showthread.php?t=2323409
http://ubuntuforums.org/showthread.php?t=2322216
http://ubuntuforums.org/showthread.php?t=2323994&page=3
It is always Best (Recomended) to install Steam for Xenial to use the default Repositories.
So a fully updated Xenial all you need to do is "sudo apt install steam" as this method will avoid the bug happening to you like the above links.
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