I received "This was an audit, designed to see if you were paying attention. You didn't pass," after voting to close https://askubuntu.com/review/close/261614 . On one of the proposed answers, the OP comments: "...I enter <username> and <password> but it says incorrect login. Now I have installed 13.04 back...." Prakash Gautam May 5 at 12:02 Since the OP moved away from his problematic 14.04 installation and the problem is no longer solvable, I was going to specify closing as off-topic with, "This describes problem that can't be reproduced that seemingly went away on its own or was only relevant to a very specific period of time. It's off-topic as it's unlikely to help future readers." I have seen this used frequently for exactly this case (OP re-installs systems to resolve the problem), and I've used it myself before. Isn't this a clear case where the question should be closed?