WinToFlash Step by step Guide Install Windows XP from USB Flash drive:
Requirements:
USB Pen drive
Computer with CD/DVD drive to build this Windows XP setup Flashdisk
WinToFlash Software
Step 1.
Download WinToFlash Here
http://wintoflash.com/download/en/
Step 2.
Extract the WinToFlash to Folder
Step 3.
Open (Double click) WinToFlash.exe