I am trying to go into BIOS to make the system to boot from a CD initially. On windows 8, I don't see any key that shows up while booting to go into setup. Why the boot doesn't show the option for setup while booting?
The BIOS does not care about what OS you are using. Try pressing the delete key repeatedly after you start your computer or check your motherboard manual to find out which key you are supposed to press upon start up.