APPCRASH / STACKHASH ERROR FIX

Hey guys, if any of you have dealt with the dreaded APPCRASH error, then I have good news. The error would occur right after champion select, when the game would actually try launching. It would then immediately crash, with windows error report saying it stopped working and the details mentioning an APPCRASH attributed to a module named StackHash. So after a few days of writing to support, and doing COUNTLESS things to try and fix it, I resolved it finally. Turns out it was actually one of the previous fixes I tried but soon gave up on and overlooked.

It's as simple as following the instructions here. However, don't make the same mistake I made; make sure your antivirus isn't deleting the new files or otherwise interfering with them. I have COMODO and it's pretty infamous for doing that sort of thing (This is why I originally thought the fix didn't work). I made this thread as a PSA; if you happen to see anyone with the same error please redirect them here or the sticky.