Thank you Alex, finally we have success!!

Now it's having an issue because the INF doesn't contain a digital signature. Do you know how I can fix this? thanks again

Ok great, thanks for your help. Seem to be getting closer, however I cant seem to find the software to install the driver. Looking through other posts I think I need the EFM32-Cdc.inf file? I cant find it in my files and when I automatically update the driver I get this: