WintoUSB does not work at all for me

[admin]

I'm sorry, Windows 7 does not have built-in USB 3.0 support, so Windows 7 will have to be booted from a USB 2.0 port. We recommend using Windows 10/8 to create portable Windows, because Windows 10/8  To Go have better compatibility.

Hi
What do you mean with not having USB 3.0 support ??? Don't understand it.
My Windows 7 works fine with my USB 3.0 Sticks or SSD's. USB 3.0 driver is working correctly.
Unfortunately my company is still using Windows 7 so I can't update to Windows 8 or 10.
Ok finally I see, that WintoUSB is not the magic SW specially with Windows 7.
Nevertheless, thanks everybody for the (frustrating) answers. 

I'm sorry, WinToUSB currently only supports Windows built-in USB drive, it does not support third-party USB drivers.