The Best Practices for running the Converter (VMware KB: Best practices for using and troubleshooting VMware Converter ) say (snipped):
- Leave the default number of virtual network cards (NICs) unaltered. The number of virtual NICs can be changed after conversion has completed.
After conversion has completed:
- Review the virtual hardware settings:
- Adjust the number of virtual NICs. If you need to customize the host name or IP address, leave all NICs disconnected but present.
Note: To remove the hidden devices from the Windows operating system, follow the instructions in the Microsoft Knowledge Base article 315539.
So my way is - more or less - what is recommended. Personally, I use the DEVCON utility to remove hidden devices. I use the RmHidDev.bat utility, which takes care of all that.