When I go into Update Manager it says that I have 161 Updates, I hit the Install Button and a Box comes up that says "To install or remove Softwere you need to Authenticate" I put in My Password and then I hit Install again Another box comes up that says "Applying Changes" I sit back and wait and Nothing happens! I even let it continue Overnight & when I checked it the next Morning there was still nothing Happening so I hit the Cancel Button. at th top of the page it reads "Important Software for this Computer" Why wont anything Install?
sudo apt-get update && sudo apt-get upgrade
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