To begin you'll need:
1. A flash drive (obviously), I used a 16G Sandisk flash drive I had laying around. Couple years old..
2. Rufus (Download). A program that creates a bootable disk from a storage or recordable image file.
3. The operating system (obviously) your trying to install / in my case I wanted to install a VL version of a OS I had on another unit.
Using MagicISO I created a ISO image file (basically a copy of the dvd/cd in 1 file). So now we have the operating system file we going to load into Rufus to create the bootable USB installation.
4. Load the image file you just made into Rufus, plug your USB flash drive into your PC. Click start & Rufus will do the rest of the work for you. Take note that your flash drive will be reformatted.