Generation of Linux USB key fails on Win 10



I intended to create a USB key with Linux Mint on my Windows 10 system. When running Etcher, after having selected the Destination drive and the linux Mint ISO file I clicked Flash ; after a few seconds I got the following error message: you are not authorized to perform this operation Please ensure you have necessary permission to do this*.
As a consquence I restarted the same operation but running the etcher application as an administrator. This didn’t help much as I got the same error message once the Flash has been clicked.

I would appreciate if some one could help me to create the Linux key because I would like to try the Mint Linux Version.
Best regards