UNINSTALLING LEAGUE - A SHORT, INFORMATIONAL HOW-TO - [LOUD]

After about 3 weeks of getting the, "Please re-install" error message when I tried to launch League, I decided to make a video detailing my adventures in trying to uninstall it.

SPOILER ALERT

I don't find out how to totally remove it.

I figured this would be a silly way of showing my problems, but if anyone can watch the video and find out what I did wrong, please, let me know. I really do want to solve this problem so I can cleanly reinstall and get back to playing. Thanks for the help!