The computer wishes to boot a program from a portible device, E.G. Flash drive, CD/DVD etc.
This depends on your expertise and preference. Typically I suggest setting your optical media drive (CD/DVD/ETC) as your first boot device, but this tends to slow down your boot time ever so slightly as the drive seeks in order to figure out if the disk in the drive is bootable media or if there's even a disk in the drive. It makes installing boot-level media far easier, however. If you know what you're doing and know how to manually open the boot menu without going into setup, then set your hard disk as your first boot device, followed by your optical media drive, then finally any other medium such as floppy drive, removable media, etc.
Faulty hard disk Nonbootable media in a drive
'Cause my brother fell my laptop on the ground and I don't know if it's already broken. I'm so scared 'cause this laptop is so expensive. :(
When a computer boots up and the optical drive does not contain bootable media, the system will move on to the next boot device in the BIOS boot order. This could be another optical drive, a hard drive, a USB drive, or a network boot, depending on the configuration. If none of the boot devices contain bootable media, the computer will typically display an error message such as "No bootable device found" or "Operating system not found."
Your computer will not boot, it will probably freeze.
the connectivity has a problem.
boot priority in BIOS just specifies which drive or other boot able device to use first to boot from.
Removing a removable storage device before booting is essential to prevent the computer from attempting to boot from it instead of the primary hard drive. If the BIOS or UEFI is configured to prioritize USB drives or other external media, it may lead to boot errors or an inability to load the operating system. Additionally, it helps avoid potential data corruption or conflicts during the boot process.
no, the BIOS is what chooses the first Boot device. YOU can change the first boot device by altering the BIOS. if however, you are talking about 1st, 2nd hard drive etc, then yes.
BIOS boot sequence option.
A bootable device is, as the name suggests, any storage device that the computer can "boot" from. In this case the word "boot" refers to the loading of the operating system. So any device you can load an operating system from is a bootable device.In modern computers, the hard disk is generally the primary boot device. However most new computers can also boot from a CD-ROM or DVD drive (usually for the purpose of reinstalling an OS to the hard disk) so it is also a bootable device. Many systems also have the ability to boot from USB thumb drives or external hard disks and back in caveman days, floppy disk drives were also popular boot devices.