how to install win xp in pen drive

Originally Posted by William_Wilson

first check that your motherboard supports booting from a usb device in your bois, under the start up order.

If Yes then

copy the windows cd to the drive, and startup with usb in teh boot order before hdd, the drive may boot all on it's own. If that doesn't work, you will need to create a boot disk with command.com and dos usb drivers to load the 16 bit installer located in the i386 folder on the drive.