14.04 - I uninstalled unity and my desktop went away, then reinstalled it and now sidebar and the top menu bar is missing

I'm running Ubuntu 14.04 'Trusty Tahr'
So after losing the sidebar and the menu bar I went to tty, reinstalled unity by using:

sudo apt-get install ubuntu-desktop

sudo apt-get install --reinstall unity

rebooted the system:

sudo reboot

Still the side-bar is missing.
But one interesting thing is that when I log-in as a guest, the desktop has the sidebar and it works perfectly, just not in my superuser account. Why is that?

Edit 1:

Used the following commands as suggested by an answer:

dconf reset -f /org/compiz/

setsid unity

But the process got stuck at:

Compiz (Core)- Info: Starting plugin: scale

I waited for an hour but nothing happened. And I still have a missing sidebar and running my programs through tty's. Help please!

Press Ctrl+Alt+F1 and log in to tty1.

Then run the following commands -

dconf reset -f /org/compiz/

setsid unity