frequent crashes

For several weeks now, I have been experiencing many crashes with eM client (windows 10.1.4588 (f11e2ab)) . The crashing happens very randomly, sometimes it is when forwarding a mail; already when entering the mail address. the other time when I compose a mail. But it also happens regularly when I am not using the programme.
Meanwhile, I have tried the following:

  • subdividing the lokal files into data files
  • not loading these data files
  • rebuilding the database by renaming the database to em Client old
  • and today a new installation

i have also tried the solutions offered elsewhere on this forum, but unfortunately they did not help either.

hopefully someone knows something to put me out of this misery