Reneval of Enterprise edition license

#1

Hi
I have installed Community edition and activated it with the 60 days free license of Enterprise key (got from https://www.uipath.com/download-free-automation-software-trial).
Now my license is expired.I want to know

  1. How can I update enterprise license? will it be free or chargeable?
  2. Can I run free version on the same device whee the licensed one is installed?