Return of Reckoning

Downloaded, installed. Played for a bit no problems. Exited out (waiting for the countdown) to close game. Returned a few hours later and got "One or more core files are missing. Please Reinstall."

Reinstalled. Played for a while. Logged out (waiting for the countdown). Next day tried to log in and got the same error message.

Basically, any time i want to play the game I have to uninstall and reinstall the game.

-are you using some agressive antivirus that just yeets some of the files for no reason?
-check file permissions, maybe windows stupidly changes them and the launcher cant see the files
-check filesystem errors just in case
-do not install the game into program files but directly to C, D or whatever drive you have to avoid file permission problems