I'm another question

I try to use FFSTRANS with Windows 10 from 2 days.
My first problem, when i uncompress the archive and the last patch, Windows defender tells me there is a trojan.
my second problem, when I disable windows defender to try, ffastrans is starting well but when i submit a file to a workflow, nothing is happening (with a source folder, same problem)
I don't understand why
i try on 2 pc in windows 10, without Antivirus and widows defender disable, same problem.
In Windows 7, no problem
i see nothing in log
Thanks for your help.