For most purposes, you will probably want the boot sequence to boot your computer into the Windows Operating System. Accordingly, computers are commonly set up so that Windows loads ‘by default’ (meaning: that is what the computer will do unless told otherwise).
Sometimes, you may want the computer to load a different operating
system, such as from a floppy disk or CD. For example, if Windows was
misbehaving or had become damaged you might choose to use a ‘rescue
disk’ - a floppy or CD with its own operating system - so that you
could make repairs or save valuable files.
This topic shows you how to change or override your computer’s default settings.
During the Second Boot Screen, your computer scans the hardware looking
for a media disk (floppy, hard disk, etc.). It assumes that any disk it
finds will have an Operating System . The order in which it checks the
hardware is called the ‘Boot Sequence’. Depending on your computer, you
may be able to either:
Changing the Boot Sequence in BIOS Setup: BIOS (Basic Input/OutputSystem) is what controls your computer’s hardware. To enter BIOS Setup, press the appropriate key during the First Boot Screen. In most computers, this will be the DEL (delete) key. If not, try F2. If you press the right key, you will enter BIOS Setup.
Changing the Boot Sequence on the Fly: Some computers allow you to choose the boot sequence as the computer boots. At some time, usually (but not always) during the First Boot Screen, press (F10) or (F12). This will cause the bootup procedure to pause, and icons of any alternative disks (floppy, CD, etc) to appear. Use the arrow keys to choose one of these icons, and press (enter).
Obtain a bootable floppy or CD, and experiment on your own computer with changing its boot sequence.
"Can I call you back? We just bought a new computer, and we’re trying to set it up before it’s obsolete.”