Sadly no luck for me with any of the posted solutions for the full install version. All still in demo mode. I've had to install the portable version of 731 instead which at least works with no problems. Big thanks to you Bob for all your work.

 

This might sound radical but more than likely may be what is causing your headache there with NI and kontakt. I had similar issues on an older machine running various versions of Kontakt and NI stuff (I think there were 3 separate kontakt versions - two 5's and a 6 I believe - all full versions and working). How it ended up this way was a mystery but I installed it all for better or worse. It finally got to a point where there was some NI piece of shit that installed "native access" on this particular machine and after that, nothing but trouble. Tried revo-uninstalling all and manually combing thru the registry removing ALL native access, NI, Kontakt and a few other NI product name references. Then tried to reinstall a SINGLE version of Kontakt (it was 6.x.x something) FULL version and it worked. Native access (in any capacity) doesn't belong on a machine running scene releases of any kind. If you come across a scene release that is wanting to install NA, simply STOP where you are, do not complete the install, delete the release and move on to something else that installs properly WITHOUT any mention of NA....