I just wanted to comment that I had a similar problem for the last few days and here is what I had to do to solve it:
1. I own a DVD copy of Windows 7 Ultimate - create an ISO of the DVD
2. Use microsofts USB utility to create the USB installer
3. Use INTELs utility to load the USB 3.0 drivers into the images on the USB installer
https://downloadcenter.intel.com/download/25476/Windows-7-USB-3-0-Creator-Utility
Note: this took a while, probably at least 20+ minutes to complete, but it did work.
4. on the target PC connect the USB installer to any USB 3.0 port and install.
The problem that I was having was my new MoBo had only 2 legacy USB 2.0 ports, but I had my USB keyboard and mouse connected to USB 3.0 ports. Windows was having trouble detecting them because it could tell they were on ports it didn't have drivers for. I realised this because during the "failing" installs (which we failing with the "driver required" messages) my mouse was moving very lethargically "generically" you might say. However, after installing the USB 3.0 drivers, and user the "fixed" USB installer my mouse was responding rapidly as I would have expected.
I believe that as a workaround users should TRY and unplug everything from any USB port except a legacy USB 2.0 port. In my case I would have had to remove my keyboard while insalling windows and just use the mouse, and hopefully hot-swap them back and forth. I am not even sure that would work, so good luck if you try that. Otherwise, I suggest you use the linked intel utility to load the USB 3.0 drivers onto you existing Windows 7 USB Installer.
Hardware:
Gigabyte GA-Z170X-Gaming 3 ATX LGA1151 Motherboard
USB Keyboard
USB Mouse
USB Thumbdrive loaded with Microsoft Windows 7 Ultimate 64bit