fabio@fabio-Aspire-5920:~$ sudo apt-get purge linux-headers-3.13.0-30 linux-headers-3.13.0-30-generic linux-headers-3.13.0-32 linux-headers-3.13.0-32-generic linux-headers-3.13.0-34 linux-headers-3.13.0-34-generic linux-headers-3.13.0-35 linux-headers-3.13.0-35-generic linux-headers-3.13.0-36 linux-headers-3.13.0-36-generic linux-headers-3.13.0-37 linux-headers-3.13.0-37-generic linux-headers-3.13.0-39 linux-headers-3.13.0-39-generic linux-headers-3.13.0-40 linux-headers-3.13.0-40-generic linux-headers-3.13.0-43 linux-headers-3.13.0-43-generic linux-headers-3.13.0-44 linux-headers-3.13.0-44-generic linux-headers-3.13.0-45 linux-headers-3.13.0-45-generic linux-headers-3.13.0-46 linux-headers-3.13.0-46-generic linux-headers-3.13.0-48 linux-headers-3.13.0-48-generic linux-headers-3.13.0-49 linux-headers-3.13.0-49-generic