Windows 7 originally shipped in 2009, prior to the widespread adoption of the USB 3.0 standard (xHCI). When attempting to install Windows 7 on systems with USB 3.0 controllers, the installer lacks native drivers, causing:

Knowing this will help me confirm if you need additional driver injections beyond just USB 3.0.

: Fixes the "A required CD/DVD drive device driver is missing" error that occurs because the installer cannot "see" the USB drive once the 3.0 ports activate [4]. Troubleshooting Tips Admin Rights : The utility

Use 7-Zip or Windows Explorer to mount the ISO (Windows 8/10/11 can double-click the ISO). Copy from the mounted ISO to your USB drive root. Alternatively, copy to a folder like C:\Win7_Files .

Windows 7 does not natively include USB 3.0 drivers. When you try to install Windows 7 on a modern PC (Intel 6th-gen or newer, or AMD Ryzen), the installer won’t detect USB 3.0 ports — so your mouse, keyboard, or USB installation drive won’t work.