what are boot devices?
Booting from USB Devices In This Section. Requirements for USB Boot. Specifies the BIOS requirements, and USB media formatting and performance requirements, for booting from USB devices. Discusses limitations and cautions related to USB boot. Booting XPe from USB. Provides the procedure for building a USB bootable image. - BIOS settings is a configuration which allow your bios to boot a bootable device by its sequence like, booting a hard drive or booting some CD-ROM disc to install Operating system in your computer. By change the boot sequence or boot order for your hard disk can fix your problem.