League of Legends CRASHES my entire machine unresponsive -- Only League

Im going to have to stop playing this game because my game just freezes in game, every game, multiple times a game requiring a hard restart, at completely random times. Im not the only one experiencing this according to previous posts. I recently uninstalled and reinstalled everything. Its the most frustrating thing... please for the love of god look into this. Never had this issue before last few patches. I previously had issues with my client minimizing a few times a game, but thats been replaced with hard freezing that never recovers. RIOT PLEASE INVESTIGATE