Thanks for your reply. Unfortunately, your advice has not helped:
There was no driver to delete as I'd not used the device with this 'puter before.
I removed all drivers where there was a ? mark. The network connection is constant and the Advanced Drived switch is in the On position.
The devise is powered by the USB and visually responds when a microphone is connected to it, so it appears to be in working order
However, in spite of this all, the new driver does not download when the device is plugged in to the 'puter's USB!
I have tried the devise on my son's custom-made PC, which also runs Windows 10, and we have the same result - the driver does not download.