Crash Bug

Minecraft Stops Responding.
Output of console:
[16:43:32 ERROR]: Game ended with bad state (exit code -805306369)
[16:43:32 INFO]: Ignoring visibility rule and showing launcher due to a game crash
[16:43:32 INFO]: Deleting C:\Users\Andrew\AppData\Roaming\.minecraft\versions\14w20b\14w20b-natives-165972429808886
[16:43:32 WARN]: Couldn't delete C:\Users\Andrew\AppData\Roaming\.minecraft\versions\14w20b\14w20b-natives-165972429808886 - scheduling for deletion upon exit