So, today I was trying to install a game, but I couldn't get the launcher file to respond. I tried to run it in Notepad mode and accidentally had "Do this for all files" checked. Now all of my applications (Chrome, Zune, etc.) want to be opened with Notepad, and have the Notepad logo. I'm only able to type this here because I already had Chrome open.
Does anybody know how to fix this?