The "Settings" button has disappeared from Software & Updates and it's no longer found under System Settings. If I run the Software Updater from the Dash it tells me that the Software on this computer is up to date. If I press OK it closes. There is no "Settings" option. I can't figure out how to get into Ubuntu Software, Other Software, Updates, Authentication or Additional Drivers. I'm running Ubuntu 16.04.01 64 bit. While searching for a solution, I found the recommendation that I remove and reinstall the Unity Control Centre, but that hasn't helped. I am an Administrator, so that shouldn't be the problem.
Asked
Active
Viewed 1.4k times
2 Answers
13
I found the answer: sudo apt-get install ubuntu-desktop This gave me the following:
The following NEW packages will be installed: apturl apturl-common nautilus-share software-properties-gtk ubuntu-desktop
I have no idea how these got deleted, but they're back now.

LeafHead
- 647
- 2
- 12
- 26
2
if setting is missing first check for gnome by
$ gnome-control-center
if it shows
bash: gnome-control-center: command not found
then run command:
$ sudo apt-get install gnome-control-center
for "software and updates setting" missing run command:
$ sudo apt-get install ubuntu-desktop
you are Done.
sudo apt install software-properties-gtk
. I don't think this was deleted - it is missing by design in latest ubuntus. – May 14 '18 at 08:13