When you first begin using Peach OSI - You might want to boot from a USB device, like an external hard drive or a flash drive. When you boot from a USB device, what you're actually doing is running your computer with the operating system that's installed on the USB device. When you start your computer normally, you're running with the operating system installed on your hard drive. Follow these easy steps to boot from a flash drive or an external USB hard drive. Depending on the age of your computer you should be able to boot your computer with a USB device in one of the following ways.
Method 1 - Usually used on older computers - Boot to USB by editing your BIOS settings.
Note: Creating a bootable flash drive or configuring an external hard drive as bootable is a task in itself. Chances are that you made it to these instructions because you already know that whatever USB device that you have should be bootable after properly configuring your computer's BIOS.