Storyline 360 trial will not run

I have been asked by my company to test out Articulate 360 specifically Storyline 360, I downloaded the trial last month and it would not run. I then had to move on to something else. Today (3 days of trail remain) I went back to it to find the issue still remains. I installed the update and now it says: "Storyline isn't fully installed and must exit" (see attached). I uninstalled it and then re-installed and I have the same issue. I am running Window 8.1 in Parallels 11 on my Mac. I have run Storyline 2 for a long time with this setup without any issues but 360 just will not work.

Any suggestions? I need to test this software out in order to decide whether our company will be subscribing to it but at this rate my trial period will have lapsed before I even launch it!