Hello, I reached the next step ... seeing the cmd window. I recognized that I had an issue with seachindexer process. I killed it and restarted my PC and then the install of the installer finished. Sorry, this was not easy to find for me.
I started now the installer (as admin), it shows a cmd window with following text
Starting emteria installer v1.1-15-gd0a787d
Detected SSL support: true
- runtime version: "OpenSSL 1.1.1g 21 Apr 2020"
- build version: "OpenSSL 1.1.1g 21 Apr 2020"
What should happen as next step?