I just finished installing the Windows 10 Beta version (I don't know what number it is by now) and downloaded all updates and did a test on the following programs I have and the results I got too. Note: I have not done a complete test yet on all versions of Studio yet. I am using an old desktop computer (Dell XPS 600, 32 bit OS with the NVidia update 314.07)
Pinnacle Studio 9 and 9 Plus won't install on Windows 10. I got too many errors and could not continue. I also believe the earlier versions won't install at all.
Pinnacle Studio 9 (Quickstart) did install (using administrators rights) with only minor issues but continued anyway and everything seems to be working well. All transitions were working too.
Pinnacle Studio 10 (I don't know yet)
Pinnacle Studio 11, 12 and 14 were also installed without any problems.
Pinnacle Studio 15 (not sure yet but believe it will also be installed without problems)
I got too tired to continue doing tests because I took almost half a day updating this computer.