Hi hello, I would like to report that there is a bug between The Cinnamon Desktop and The Update Manager, as always I download all the updates directly from the update manager but yesterday, when I booted my system and I logged in then the cinnamon desktop, it dissapears and i had a gnome 3 basic desktop on my laptop. I just tried in many ways to get back my common desktop (cinnamon) until I remember when I made the updates, the update manager has installed all the nvidia drivers when this computer use a intel generic driver. The solution*: I went to synaptic package manager and I uninstall all the nvidia drivers*, then I go back my desktop again.
*This solution is for works for me, in other cases it may vary. Wait until linuxmint developer's fix this bug.