Launcher, menubar and window borders disappeared in Ubuntu 16.04

I found the answer from this thread (https://askubuntu.com/a/717860/25131)

1. Alt + F10 and then open terminal from the menu that appears
2. then type ccsm in to the terminal.
3. in there search for unity plugin and enable it.

It asks several questions because enabling it conflicts with another. After enabling it the Unity launcher and menu bar should appear.