You may experience problems attempting a reinstall of Trial Director 6 on Windows 10. Today, when attempting to do so, Trial Director simply failed to launch for me - the welcome screen flashed for a split second, and there was no further error message. The other applications in the Trial Director suite, including TimeCoder, would also not open.
I contacted tech support at IPro (are these the same fine people who worked at inData?) and they were able to send me a new download file that successfully installed an update that launched without any problems on my new Windows 10 operating system. See the posting about this issue on the IPro forum. Note that the automated directory on for IPro tech support ((877) 324-4776) doesn't seem to mention Trial Director, but press something and they should be ready for you.