No launcher or menu [duplicate]

Install CCSM

sudo apt-get install compizconfig-settings-manager

And then run it in terminal (CTRL+ALT+T)

ccsm

Then search for "Ubuntu Unity Plugin". If it's not checked, check it.

If it is checked you may have another issue. Try restarting compiz:

kill -9 `pidof compiz`

This will kill it, it should start up again, if it doesn't, CTRL+ALT+F2 and then type:

sudo service lightdm restart

to restart the window manager. Go back to the terminal and run:

unity --reset

Which should reset unity. Note that in more current versions of unity, the reset option is now deprecated.

You could also try another desktop environment though this isn't a solution.