OL
Just copy the ENTIRE (top) Library folder. Everything is ther about THAT library..
I also noticed the 2.0 (on XP) did not respect the removal of the 'Show Notification when New Version is available' tick.
Anticipating not being able to go past 2.0 on XP, I had removed the tic (and restarted).
Lo and behold, there was the notice

when I started this morning .
(Kovid: If this is a also a QT5 bug, please ignore this mumble

)