Installation from a USB Flash Drive

First, of course, the computer must be capable of booting from a connected USB device. Check your BIOS settings for this.

Download this ISO image file.

Use the liveusb-creator tool to put the image on the USB Flash Drive.

Plug the USB Flash Drive into the target computer and turn it on. Set the computer BIOS to boot to the USB Flash Drive.

General information about creating a Linux installation image on a USB Flash drive is available here. Remember to use the above referenced image rather than the one mentioned in the example.