Like so many others I have had serious issues loading Komplete Kontrol either as a standalone app or inside a DAW. I searched google without any serious explanation or fix so I started to looked deeper into my computers services for some answers. As with all others complaining this happens during the VST scan stage
When loading Komplete Kontrol you will find this background app running
Task manager - processes -ni-plugin-info.exe
There appears to be 5 separate instances and all should be updating by the second, if not and I found all of mine had hung and therefore stopped so I ended the task of one or two until the loading process started up again watching until it finally opened. On restarting the app it now takes less than a minute.