“A required CD/DVD drive device driver is missing”
The issue occurs because the required drivers for installing windows 7 in your new hardware are missing.
1: Make sure you have inserted USB stick to a USB 2.0 port instead of a USB 3.0 port.
2. Download and create bootable USB using the windows installation tool. It adds the required driver to the flash-drive while creating a bootable windows pendrive.
For further info or have any question do let me know in the comment section below 🙂