How to get windows to install from usb and not from disk drive?

[MattTB]

Currently at this point of my build, have windows install program on my usb, which is said to be possible by windows. Asking for a disk drive, and I dont have windows on a disk. Any way to bypass this?

 

[scout_03]

you have to set it in the bios so it use the usb first to boot and not the hdd .