[ubuntu] How to can I install ubuntu 16.10 alongside with ubuntu 17.04 ?

Hi
I have installed ubuntu 17.04, but it is not really ready lots of bugs.
Now I want to install ubuntu 16.10 witch is more stable
How can do this without formating my hard-disk.
I don't want to loose the things already installed.
is is possible to dual boot 2 ubuntu on the same machine ?

thanks