For a long time, people are troubled by problems they meet when they try to install Windows 7 using a USB Flash Drive onto a system that only has USB 3.0 ports. You may encounter questions such as unable to get past the Language Select screen of the installer as the keyboard and mouse don’t work.
Below in the video, it shows the method in detail to solve people’s problems in dealing with stuffs above. Watch the video and feel free to leave your questions in comment!