Windows 7 x64 – Installing on a Computer with Only USB 3 Ports

I am installing Windows 7 x64 on a HP EliteDesk 800 G3 SFF that only has USB 3 and USB Type-C ports.

Initially, upon booting the USB install media, the USB keyboard and mouse wouldn't work – this was because the Windows 7 install media doesn't have USB 3 drivers.

I was able to modify my Windows 7 install media (USB drive) by using DISM to include the USB 3 drivers. Following this guide, I downloaded the USB 3 drivers from HP's website and extracted the driver files and embedded them onto the USB install media. I was then able to install Windows 7 successfully.

However, after Windows 7 x64 is installed, I get stuck at the setup screen because the USB keyboard and mouse don't work again – this is because the USB bootable install media had the drivers on it but they weren't installed when the OS was installed so I am stuck with a computer that has Windows 7 installed without USB 3 drivers so I cannot complete the initial Windows setup.

The drive Windows is installed on is a M.2 SSD.

I also checked the BIOS and there is no way to disable USB 3.

Is there a way to modify the bootable USB media so that it not only runs the USB 3 drivers but also installs them with the OS so I can use them after Windows is installed?

Or is there another way to do this?

Related issues: 1, 2, 3.