Dear Jordi,
first of all thank you very much for your quick response. Yes you are right 5.115 worked well a long time without any problems till I changed the TRX control from direct 7610 to OmniRig to control my IC-9700 together with the SDR control (QO-100 operation). After the QO-100 operation I switched back to control the IC-7610 directly. I remember that was the decisive act. After this act the error occurred. I disconnected both USB cable from the IC-7610 for a while and connected again. Additionally I followed your procedure sfc/scannow. Windows detected some issues and repaired them automatically and build a new image. Finally it works well now. I think there was an issue with the USB interface (hanging) either on TRX or on PC.
However I am happy and again thanks a lot!
Achim, DL1DAW
