So I got home from work and tried to start up League, and couldn't ever get it to open. The icon pops up after I try to open it, and then becomes unresponsive. I browsed forum after forum and tried about everything that I could find, including
Deleting several folders
downloading a repair tool
restarting my computer/router
deleting even more folders
restarting again
deleting more folders
I wouldn't bring this to the MMO-Champ forums, but the League forums haven't been much help because all the basic troubleshooting steps haven't worked. Any help?