I just built my first build using an ASUS TUF Gaming x570-plus motherboard. I downloaded the Windows ISO file onto a USB drive and plugged it in. The USB displays on the BIOS Boot Priority List, so I put it at the top. When I reboot I get a message saying "Checking Media Presence... No Media Detected" and then a screen that says "Reboot and Select proper Boot device or Insert Boot Media in selected Boot device and press a key". I believe the problem is that the computer isn't recognizing the ISO file, and not that it can't recognize the USB, but I don't know why that would be the case. Any suggestions?