Hi Boris, attached you find the logs. The file is located on a network-share in case of the size. The log file name: 'logs\V2V_Log-20191202-153203.log' (PID 2832) 12/2 15:32:03.457 10d0 Facility ???INFO: CV2V_ConverterApp::InitInstance: SetDllDirectory: C:\Program Files\StarWind Software\StarWind V2...

My mistake, it is a qcow 2 file. But the converter still shows the QCOW3 error.

I've tried to covert qcow to ESXi and got the message that qcow v3 is not supported...