No Gnu / Linux:
Windows cmd-line = Terminal
Para abrir um terminal, pressione (Ctrl + Alt + T)
Para desativar todos os softwares multiversos e não gratuitos:
Execute
sudo -i
nano /etc/apt/sources.list
No arquivo aberto, comente para desabilitar o prefixo # destas linhas:
deb http://us.archive.ubuntu.com/ubuntu/ trusty universe
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty universe
deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates universe
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates universe
deb http://us.archive.ubuntu.com/ubuntu/ trusty multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty multiverse
deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates multiverse
deb http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu trusty-security universe
deb-src http://security.ubuntu.com/ubuntu trusty-security universe
deb http://security.ubuntu.com/ubuntu trusty-security multiverse
deb-src http://security.ubuntu.com/ubuntu trusty-security multiverse
deb http://archive.canonical.com/ubuntu trusty partner
deb-src http://archive.canonical.com/ubuntu trusty partner
deb http://us.archive.ubuntu.com/ubuntu/ trusty-proposed universe multiverse restricted main
Para que eles estejam bem:
#deb http://us.archive.ubuntu.com/ubuntu/ trusty universe
#deb-src http://us.archive.ubuntu.com/ubuntu/ trusty universe
#deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates universe
#deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates universe
#deb http://us.archive.ubuntu.com/ubuntu/ trusty multiverse
#deb-src http://us.archive.ubuntu.com/ubuntu/ trusty multiverse
#deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates multiverse
#deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates multiverse
#deb http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
#deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
#deb http://security.ubuntu.com/ubuntu trusty-security universe
#deb-src http://security.ubuntu.com/ubuntu trusty-security universe
#deb http://security.ubuntu.com/ubuntu trusty-security multiverse
#deb-src http://security.ubuntu.com/ubuntu trusty-security multiverse
#deb http://archive.canonical.com/ubuntu trusty partner
#deb-src http://archive.canonical.com/ubuntu trusty partner
#deb http://us.archive.ubuntu.com/ubuntu/ trusty-proposed universe multiverse restricted main
Para remover, exclua as linhas.
Ctrl + O , salve o arquivo. Ctrl + X , perto do nano.