Minimum 8GB of storage is required for this also the USB drive should be well formatted before booting the system. Using a mobile device like USB offer a much simpler and straightforward way to boot your device. This portable device is compatible with almost all desktop gadgets and laptops.
If you are falling short of DVDs and your PC does not have a free optical drive, then USB drive serves the option for booting your system. How to Make a Bootable USB Drive Why Update Your Windows Version Using a USB Drive
