Is the "trial" version of NIS 2014 the same as the "paid" version

I have a trial version of NIS 2014 on my laptop and the trial is about to run out.
The version shows the same number as the paid version of NIS 2014 that I have on another laptop.
I have 1 extra license for NIS 2014
So on the laptop with the tria version, do I need to remove that trial version and install a fresh copy
Or can I just use my key to extend the trial subscription?
If I extend the trial subscription to I have the full normal NIS 2014?