Editing Boot disk (section)

==Device selection==
A modern PC is configured to attempt to boot from various devices in a certain order. If a computer is not booting from the device desired, such as the floppy drive, the user may have to enter the BIOS Setup function by pressing a special key when the computer is first turned on (such as {{Key|Delete}}, {{Key|F1}}, {{Key|F2}}, {{Key|F10}} or {{Key|F12}}), and then changing the boot order.<ref>{{cite magazine  |magazine=[[PC World]]
   |url=https://www.pcworld.com/article/241032/how-to-enter-your-pcs-bios.html
   |title=How to enter your PC's BIOS
   |quote= Need to change your computer's boot order or access other ..
   |date=October 5, 2011}}</ref> More recent BIOSes permit the interruption of the final stage of the boot process and invoke the Boot Menu by pressing a function key (usually {{Key|F11}} or {{Key|F12}}). This results in a list of bootable devices being presented, from which a selection may be made.

[[Apple silicon]] Macs display the Boot Menu when the power button is pressed and held, the older [[Mac (computer)|Mac]] computers with [[Intel]] processors will display the Boot Menu if user presses the {{key|Option}} or {{Key|Alt}} while the machine is starting.<ref>{{Cite web | url=https://support.apple.com/en-us/HT201255 | title=Mac startup key combinations }}</ref>