VC++ redistributables 2008 (x64) resolved starting problem for me. But I better not have installed this software at all. Now my computed does not recognise the S6 at all, and the program itself cannot connect to it either.
This helped me too. Wonderful. I wonder why Samsung did not include the Visual C++ with Smart Switch. Also Samsung refused to help me as I was not in the USA. What a shame. Making good hardware is not enough, they have to make good software too.