Right click on Origin in desktop - Select Run as Admin - login
In the game library - game icon - Right click and select Repair.
Temp
_WINDOWS + R
Go to run / type in %temp% / highlight all the temp files then & delete all temp internet files / skip those which will not delete.
Origin InGame
Open Origin.
Click on myGames.
Right-click on the game for which you want to turn off Origin in game.
Choose game properties.
Tick the option Disable Origin in game for this game.
Close Origin.
also close from background - CTRL + ALT +DEL - manually end task - if running
To double-check, open Task Manager and go to Processes. Make sure that Origin.exe and OriginWebHelperService.exe aren’t there. If they are, end the tasks to close them.