Installing windows 7 - USB not detecting

Svantelol

Honorable
Oct 27, 2013
46
0
10,540
Hi, I just built a new computer, and when I went to install windows 7 on it, it starts the install process and then it says "A necessary driver for CD-/DVD-device is missing. If you have the driver on a cd, dvd or USB-flash please insert it now" The motherboard is a MSI Z170A M3
 


It doesnt get that far...it doesnt show anything except the error message I wrote above. it says "choose the driver that you want to install" and it's nothing there.