I updated Ubuntu 16.04 in Virtualbox on Windows 7 and now I can only get the desktop background.
I found these questions:
Ubuntu 16.04 launcher is missing after installing new updates
Unity doesn't load, no Launcher, no Dash appears
GUI disappeared since last update, Ubuntu 16.04 running in VM on MacOS
Menu Bar and Launcher missing after installing updates (16.04 LTS)
I tried a lot of things all without success, then I tried the steps in https://askubuntu.com/a/801782/574037, getting as far as step 7 before getting an "permission denied" error.
Please help - I'm almost out of ideas.
I have a Nvidia card, if that helps.