I never had problem like this before. So, few days ago I tried to launch my League client and it didn't worked. It crashed and doesn't even open the client. I tried to run it as administrator, and restarted my computer few times and that didn't work. I uninstalled the League and tried installing it again, but when I downloaded the installer and tried to install it, it crashed again without even opening the installer. I also tried o run it as administrator, looked for the solution on internet, but it seems like no one had problem like this earlier. So, if u know how do I solve this problem, please tell me.