Hi, I am Dave, I will help you with this.
You need to go to the support page for your PC/MOtherboard on the manufacturers website.
From the chipset section, download the installer for the Intel RST drivers.
Extract out the drivers from that installer and put them into a new folder on your USB.
When you reach the part of the installation where you cannot see the drive, click 'Load Driver, then select one of those Intel RST drivers.