Can xp be booted from external hard disk?

Answer:
The only way any operating system in the world can boot from an external hardrive unless you develop your own BIOS and Operating system is by connecting it via E-SATA. E-SATA is short for External Serial ATA conection. It looks like a small a short but wide usb port with to notches on the sides and the cable ends are flat and wide as well with matching notches. You can but a PCI or PCI-E E-SATA port card for desktop or if its a laptop you have to pretty much pay more than what its worth or buy one with it. Also E-SATA bootting only works as NTFS nothing else and it cannot be raid, mirors, striped, or anything but normal.
First answer by Woozycactus. Last edit by Woozycactus. Contributor trust: 18 [recommend contributor recommended]. Question popularity: 1 [recommend question].