My league launcher is not going

Same problem. It's kinda pissing me off how many times I've had to re-install this shit client.

I had an issue with my client until I fixed my proxy settings through internet explorer.

Make sure you don't have razer synapse running as it will cause this problem; go into task manager and close it in processes then your client will start fine. Though you probably won't be able to log in anyways what with the issues RIot is having.

Razer synapse is a program included with razor hardwire such as a razor mouse or razor keyboard. When I have this issue I close that program and it fixes it for me. So assuming other programs can and will affect the client close any unnecessary processes in task manager to see if it helps.