Ok so I've found the tools I used and uploaded them all for anyone that's interested in installing W7 to USB 3.0 hardware. The Windows 7 SP1 installer does not natively contain USB 3 drivers, only USB 2.0.
Sadly Intel removed their own tool from their website but the guide they created is very good so I felt it should be uploaded. If you are already familiar with DISM then this will be beneath you, but for the rest of us that rarely do it this is a fairly simple way. It will make more sense after the 1st time you perform it.
A breakdown of all the tools I uploaded, and where possible their original sources:
My Cloud: https://mega.nz/#F!HQMiXKTL!g5vZAZnC8qkI97zWitHUPw
- Win7-USB3.0-Creator-V3-Win7Admin.zip
Creating W7 ISO on a W7 OS.
- Source: https://downloadcenter.intel.com/dow...reator-Utility * (Original source no longer available)- Win7-USB3.0-Creator-V3-Win8+10.zip
Creating W7 ISO on a W8+10 OS- mb_utility_windowsimagetool.zip
Gigabytes tool, recommeneded by Intel as a replacement to their own tool or should the original Intel tool not work for you.
- Source: https://www.intel.co.uk/content/www/.../mini-pcs.html- DISM GUI.exe
Required for Intels tool (link in userguide will go to Codeplex which is no longer valid).
- Source: https://github.com/mikecel79/DISMGUI/releases - updated link- wufuc
To re-enable Windows updates on more modern hardware and prevent unsupported hardware message.
- Source: https://github.com/zeffy/wufuc/releases
Obviously Hexites have common sense, but I have to state all tools are provided as is, with no guarantee's of any kind. While I have used them all with success, your experience may be different.
Some intuition will be required for AMD hardware.