F1 or f2
By pressing certain keys (depending on the specific computer and BIOS program) during the boot process, ex: F12, F2, F8,
F2, F8, F10, or F12 depending on type. (usually F12 or F2)
If the BIOS supports it, you can. You'll either have to go into BIOS and change the boot order or some computers will let you press F10 or F12 during boot up to display a boot menu that will let you choose from which disk you'd like to boot.
bios
The answer usually is displayed on your screen for a couple of seconds at the beginning of the boot process. I think you usually have to press F8 at that time, but it varies.
during the boot process depending on the motherboard you can press the delete key or the f2 key you only need to press it once but if pressing it multiple times makes you feel better you can do that too. if your operating system begins to load you didn't press the key early enough
The BIOS menu on any computer is helpful for many reasons, including making configurations and troubleshooting. On a Dell laptop, getting into the BIOS menu is a cinch. Simply power the computer down and back on. Once you see the boot screen with the Dell logo, repeatedly press the F2 key until you are eventually taken into the BIOS menu. There you can make changes to things like your boot order, hardware, and more.
There should be a button at the back on ur motherboard, depending on what motherboard u have. Otherwise, press <DEL> during boot and reset BIOS
its what tell the computer what to boot first, it can be anything choosen by the bios, if you go into the bios you can change the boot order.
First start the PC and then press f2 for bios then boot to CD/DVD
Usually if you have a bootable CD in your CD drive it will automatically boot, if not you will need to change your BIOS settings so it boots from CD before attempting to boot from your hard drive. To do so on start up it says "Press Del to enter setup" so press delete. It should be in "Boot configuration" or "Advanced BIOS" and there will be options "First boot device" and "Second boot device" and so on, go to first press enter and then click across until it says CD drive. Then go to second and change it to what first used to be. Tada, save and exit BIOS and on restart you'll boot from the CD if there is one in there.
flash the bios