Want this question answered?
In XP and earlier, it's called boot.ini. In Vista and 7 (and possibly future OSes), you have to use a program called bcdedit to change the bootloader.
Repair Your Computer
Your Bios has an option to boot from your DVD Drive or external drive. If the internal or external drive has no boot sector or disc with a boot sector the system will not boot. You will need to go into your bios at boot time most often by tapping your delete key or whatever option your motherboard bios requires and change the option back to boot from your hard drive.
To get an air boot, you should consult with a medical professional, such as a doctor or orthopedic specialist. They will assess your injury and determine if an air boot is an appropriate treatment option. If so, they can provide a prescription or refer you to a medical supply store where you can purchase one.
winreutil
It will first boot from CD if available and then from hard disk. If you need to install any operating system or want to boot from CD, you need to enable this option.
Advanced BIOS Features
BIOS boot sequence option.
Windows Boot Manager
Boot Logging
Probably /boot ?
Microsft word