OS Installation from usb HD

From: sarah (anonymous_at_discussions.microsoft.com)
Date: 08/21/04 

Date: Sat, 21 Aug 2004 06:09:27 -0700

i want to format a desktop machine previously loaded with
win xp. no cd rom available. instead, i have an external
harddisc with many programs, softwares and operating
systems copied to it. this harddisc could interact with
the computer via usb connection.
- can i format the desktop harddisc using the fdisk
utility that i have it on a seperate floppy?
once the harddisc is formattted, will the usb HD be
supported so i can call the windows setup file and
install the operating system that i want?
your imput to my questions is appreciated and will
appreciate any idea to have the job done.

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