Below is the direction on how to accomplish this.
First you must have a usb and XBOOT download link is below
Than install Xboot on your system follow
the step below.
Step 1
Step 2
After above procedure a screen will pop out
guiding you to find your USB. OPen the list and add the address of the USB
drive.
Note:
if you are installing a iso image of an linux OS then u have to check the Syslinux(Recommended)
option, but if u want to install window OS than u have to select the Grub4dos
option.
Step 3
After click on OK button a screen will pop
up.
Your OS is now installing on your USB
drive.