text: i h have a home pc with no operating sistom on it how can i get one on it please? how to get an operating sistom on a new pc get an operating system on  cd. put the cd in the drive and turn it on. if it does not work it's because the computer has not tried to boot from the cd. go in the bios setup and tell it to boot from cd first. to get in bios setup, the computer should tell you on the first screen but it's usually  key or f12 or something like that.