{CRASH] Game freezes soon after loading due to Windows 10 update

My computer just upgraded to the Anniversary Edition of Windows 10. No other changes have been made to any software between playing my last real game and that update.

While the client worked just fine to get me into a game, soon after I entered a game it froze and I couldn't Alt+Tab away or Ctrl+Alt+Del. I forced a shutdown, rebooted, and tried to reconnect; I was able to buy items and get my level 1 skill but my teammates had remade so the game ended. While the animation for nexus destruction began, the game froze in the middle (as the colors were swirling), producing a high-frequency, medium-pitch buzzing and preventing rescoping as described above.

I forced a shutdown, rebooted, sighed my way through the Leaverbuster dialog, and started a custom game. My game froze again at roughly the same place and produced a similar buzzing while preventing rescoping. I forced a shutdown, rebooted, and was confronted with a "reconnect" dialog that I didn't accept because I really don't want to deal with that again right now.

What can I do to fix this problem? Also, is there a way to remove that leave from my record?

I'm using an Asus UX305F, if that helps.