[Gameplay] Keyboard locks up during games

About ten minutes into any given game, my keyboard freezes. No inputs of any kind work. I can't even tab out or try to bring up the task manager with ctrl+alt+delete because my computer isn't registering the keystrokes. The only thing my computer responds to is a force shutdown. It takes a few minutes to get back into whatever game, where after a few minutes the problem will show up again.

I've heard it might have to do with keybindings, so I've cleared everything I've had. Cleared them within client and gone into the program's files and deleted them manually. I've tried uninstalling and reinstalling. I didn't put in any custom keybinds after the install, in case that was the issue (which means I can't use the "enemy has vision" ping because it has no default). For about a day, it seemed to work. Now, it's back.

I'm getting hit with Leaver Buster penalties because of this and it's obviously unfair to the rest of my team. I've sent in bug crash tickets but never gotten any indication that they're being heard. League has become entirely unplayable. If anyone knows anything at all, I'd greatly appreciate it.