Hi Guys!
Thank you for all your help and all the efforts!
After completely deinstalling all sound devices and reinstalling them I ended with all devices and settings completely mixed up. Had to dis- and reconnect all the plugs for the software to recognize the speakers correctly before getting back even system sound I still had no sound in the game. Even the in game-sounds were missing. Everything set correct in the realtek settings. I then in those Win10 setups had to make further settings which were not stored although already made in the Realtekdriver. After that all sounds are back! Solved! No idea why this initially happened, though. Sorry for stealing your time!
And still, I remember now, when I just a few days ago got a new rig in the firm I am working for I had problems with Thunderbird to be recognized in Win10 as Standart-E-Mail-App. Although it was correctly set and shown in the Windows settings all those entries had to just be "clicked" anew until Win10 handled them correctly. Maybe the same glitch...
Thanks for all your efforts again!
