League Client doesn't appear!
l have been trying to launch League for 5 hours now. When l press to open the client my mouse indicates that it's loading then the Riot Games logo pops up for a split second and disappears. Then l open Task Manager to see if l can end the task from there and relaunch the client but it doesn't show up there. l tried running League as administrator, l tried using the Hextech Repair Tool to repatch and reinstall the game and nothing has worked. l checked the servers (EUNE) and they are online. I'm concerned if it's my PC that's the problem or if there is something going on with the client. Please help. Thank you in advance!