Attempting to retrieve Windows files from a USB storage device
Attempting to retrieve Windows files from a USB storage device
You're facing an issue where Windows 8.1 isn't detecting your USB drive as a bootable device on your BIOS. Try connecting the drive to another computer or using a different USB port. If that doesn't work, consider using a USB-to-SATA adapter or checking your BIOS settings for USB support.
You just saved the Windows 8 installation files and simply moved them onto the USB. A tool mentioned in the video is needed to make the USB bootable.