Las últimas lineas de la consola son estas:
21:45:57 ERROR]: Game ended with bad state (exit code 1)
[21:45:57 INFO]: Ignoring visibility rule and showing launcher due to a game crash
[21:45:57 INFO]: Deleting C:\Users\aroa\AppData\Roaming\.minecraft\versions\1.7.10\1.7.10-natives-241250037163
[21:45:57 WARN]: Couldn't delete C:\Users\aroa\AppData\Roaming\.minecraft\versions\1.7.10\1.7.10-natives-241250037163 - scheduling for deletion upon exit
No entiendo el error. Podeis ayudarme?