Windows USB Clean Install - A media driver your computer needs is missing

Hi

The (only) hard drive in my Inspiron 2350 died so I replaced it with a Samsung 860 EVO SSD. I am trying to install Windows to the SSD from a USB 3.0 stick. Neither the install downloaded from Microsoft, nor the recovery image downloaded from Dell works. In both cases Setup pops up a windows asking me to locate drivers. It says:

A media driver your computer needs is missing. This could be a DVD, USB or Hard disk driver. If you have a CD, DVD, or USB flash drive with the driver on it, please insert it now.

Does anyone know what drivers it needs?

Thanks