Copmuter Completely Freezing Cannot Play

So last couple days i had been having some issues with league mainly just random fps drops and lags. But yesterday i updated my AMD Catalyst drivers, and i thought "sweet, leagues gonna run better now!" In truth, whats happened is that i cant play a single game. Ive tried four of them, each time it has completely frozen my computer and ive had to manually shut it down. On top of that im getting leaver notices and if i get that wait time before a match im gonna pull my hair out. Im extremely tired of having constant issues with this game every two or three patches, surely the "13th best" company to work for can hire some people who know how to write a functional program.