Let me explain. I used to play LoL on his computer via a flash drive installation (Installed it on flash drive on one PC, carried drive around to play on other PCs) when my PC was broken.
I stopped. He's now interested in trying LoL.
It keeps trying to tell him it already detects an installation and if he would like to modify or reinstall. So he tries.
Then it tells him cannot access "files on drive j" (He doesn't have one, so it's obviously referring to a flash drive that isn't there). Then it closes.
He's tried registry cleaning, redownloading/reinstalling, and nothing seems to work. Any suggestions?