Infinite client patching

My client keeps patching over and over again. It finishes the download then it says 'we have restored this installation to an older version of league of legends. Now we'll try to patch it up to the latest version.' When i press okay it say in 10 seconds it will update automaticly or something like that. Then you will get the download screen it keeps downloading a 47,2 mb and 11 mb file. then i will get the screen in the client i said first.