What should I do if the U disk drive system prompts for the missing CD/DVD drive device driver?

Foreword: In the U disk installation system, when installing the Win7 system, I get an error message "There is a missing CD/DVD drive device driver", and the "Next" button is grayed out and cannot be clicked. How to solve it? Solution: The reason for this situation is mainly because the Win7 system installation program does not recognize the IDE physical drive or hard disk, Win7 system does not integrate the driver of the South Bridge chip, and the IDE interface on the motherboard is provided by the South Bridge. In this case, you can download your motherboard South Bridge or North Bridge chip driver, and then copy and unzip it into a USB flash drive. When installing, insert the USB flash drive and add the driver. Or pull the U disk and try again. If it still remains unresolved, it may be that you plug the USB flash drive into the expansion USB slot. Just plug the USB flash drive into the main USB slot (for example, the back side of the desktop chassis is directly connected to the USB slot on the motherboard). It is installed normally. If it is a laptop, you can try to replace the USB slot to solve it. Website www.xxx provides you with the best WinXP system download! Win7 system download! Win8 system download!