This was also selected !!!
i removed all of them like you told me.
@yassinebouriga Did you try disabling that program for a while, to check if Opera's history stop being removed?
(try it too...) ^^^^^
well... if you really unchecked all those i say...
try to view if your browser have some extension to erase when exit
like History Eraser from Magic Actions for youtube
Check if you have system optimizers or cleaners similar to advanced system care, ccleaner, Glary Utilities, avg tune up..... installed on your pc.
and see if your cookies is marked to like this...