Installing Win7 ... CD/DVD device driver missing

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I've just built a new system with the Gigabyte A-Z170XP-SLI motherboard but I'm try to install Windows 7 Pro via USB (used Rufus to create the bootable drive) onto a Samsung 850 EVO SSD but I am getting this error:

I've tried all the tricks that are mentioned on forums and youtube:
Changing USB port from v3 to v2, formatting the drive via diskpart on the recovery section of the installer.
I've downloaded some drivers from Gigabytes website and put to them onto the usb but it's not what the installer is after apparently.


Any ideas? I'm really needing this system to be installed soon so any help is greatly appreciated!!

 

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Thanks for the replies!

After what Stewski said I thought Gigabyte might have a tool to prep a USB drive too...
They do!!

https://www.youtube.com/watch?v=ufsczv8cIeM

Had to use the tool to upload USB3 drivers onto the bootable USB drive and once they were there the OS installed without a hitch.

Thanks for the help!