I upgraded to Ubuntu 16.04 from 15.10 a few weeks ago. After upgrade my Software Updater stopped asking for Administrator Authentication before installing new updates. It just shows that new updates are available and when I click on Update now, it starts updating without asking for password.
How can I set it to previous settings?
Authentication
tab ofSoftware and Updates
inSystem Settings
. – sempaiscuba May 26 '17 at 11:46