Freeze and Crash Gone Unfixed.

Well for the past few months I've been trying to fix an error between my computer and this game. I feel as if I've whitewashed my computer but deleting and uninstalling and reinstalling this game and other programs all in the name of this game functioning properly. I have left so many matches that I've been put in the 20 minute leaverbuster thanks to the in-game client freezing and crashing my entire computer. No matter what I do; hextech repair tool, update drivers, reinstall, uninstall steam; this game refuses to cooperate with my computer. I don't have viruses and I don't know computers beyond basic information. I've done so much to try and fix this issue. At this point I've tried handing it over to Riot and read multiple other forums on this issue and none of their team members have done a thing to comment as to whether or not they're working on the issue at hand. This has cost me LP, time, and in the end it will be costing Riot cash. Considering how much people bash this game I find it harder and harder to play as time goes on and then they can't even keep it from crashing on a basic Dell laptop. I haven't spent a dime since this started happening and I'm sure I'm not alone. Riot, PLEASE FIX THIS ERROR. I can't go more than six games without this taking place. Please look into what's happening and fix it.