Help My client wont open!!

so last Wednesday i played a game as normal then logged out, later that day i went to log in but after clicking launch on the patcher i get nothing, it doesnt open anything just closes the patcher, there is nothing in my task manager either, i have uninstalled and reinstalled 3 times and searched for a fix but i cant find anything, i dont know what to search because i get no error messages, it just doesnt open. someone please help