Crashes in Cubase and Ableton after playing some notes – CWITEC Forum

Hey,
I am using Win10/64 and the latest TX-Version.
My Cubase-Version is 8.5 I believe, but as I said, I have the same problem with Ableton, so I suppose the DAW is not the problem.
The exact steps are: I open TX, I load one or more sounds into TX, I play some notes (I can hear them) either on my MIDI-Keyboard or on the Virtual Keyboard in TX and after playing for approx 10 seconds, the program freezes as well as Cubase. When opening the Tast Manager, it says, that Cubase is not responding.
And that’s it. I tried it several times with the same outcome.