I also have an acer c720; I totally de-chromed mine, and installed xubuntu 14.04, sounds like you may have done the same?  I&#x27;ve been very happy with it, however the other day I was contemplating upgrading to 16.06 when it comes out, but the thought of going thru all the steps again (to reinstall the os) and the prospect of getting something wrong is a strong deterrent imo.  Although most steps are documented, it&#x27;s still a distraction from what I want to be doing, ie developing software.