Adobe and their Error 16 issue

So today I opted in for the Adobe Illustrator CC 2015 trial (Windows version). I had Creative Cloud installed with Photoshop and Lightroom already so just hit the Try button and waited. The setup finished quickly and without any error so I launched the new Illustrator and seen a Configuration Error message with an Error code 16. Not too talkative. Also the Illustrator icon was a blank page instead of the Ai stuff.

So this is what I tried, so far

1) Uninstalled and reinstalled Illustrator.
2) Uninstalled everything then launched Adobe's Creative Cloud Cleaner and cleaned up everything, then reinstalled.
3) I tried several methods manually also looked up this issue on Google without any luck. I've seen some weirdness around Windows Security on the files so I guess this was some kind of a Permission/Security issue which happened during the installation from the Cloud.
4) I was able to launch Illustrator as an Administrator, it seems the elevated privileges overcame of the security issues but of course this is not fixed the initial problems.

This was the time when I decided to contact with Adobe support. They tried to repair it through a remote session and they simply enabled Run as Administrator in the Compatibility dialog and said it is OK now, use it this way. Icon was not fixed and also I don't really like such "solutions". It is like my car has weird noises when going above 50 mpg and the repairman's solution is to move slower than 50mph, see, all is fine, problem fixed.

So after this unsuccessful attempt I had an idea. I've downloaded Adobe Illustrator CC 2015 from torrent (yep, I know...  wait for it) and installed it. The software appeared fine in CC and started my Trial this way. All the issues are gone, icon visible, Error 16 gone and no need to launch it as Administrator. After this, I applied latest updates to it from CC Control Panel, everything went fine, still working good in trial mode. I did not use any keygen/cracks for it so the result is 100% legal, but I had to use a not-so-legal source to install it. Interesting.