If you need to install or reinstall Windows 8.1, you can use the tools on this page to create your own installation media
using either a USB flash drive or a DVD.
Before you begin
Make sure you have:
An internet connection (internet service provider fees may apply).
Sufficient data storage available on a computer, USB or external drive for the download.
A blank USB or DVD (and DVD burner) with at least 4 GB of space if you want to create media. We recommend using a blank
USB or blank DVD, because any content on it will be deleted.
If you will be installing the operating system for the first time, you will need your Windows product key (xxxxx-xxxxx-xxxxx-xxxxx-xxxxx).
For more information about product keys and when they are required, visit the
FAQ page.