I am attempting to install Windows 7 from a USB Drive, and it successfully boots to the windows 7 setup. But, once I select "Install now", it arrives at the "A required CD/DVD driver is missing" error. I have spent a few days trying to solve the problem, but nothing works. I have tried putting it in a USB 2.0 port, changing ports, and have tried loading the drivers from a separate USB drive, but so far nothing has worked. I am trying to install it on a Western Digital solid state drive on an MSi X470 AM4 gaming plus motherboard and a Ryzen 7 2700.