
Whether you're building a new Windows PC or just want to make a completely fresh start on your existing computer you will need to download Windows 11, create an install disk and use it to write the the new OS to your boot drive. In order to create a bootable install disk, you will need to download a Windows 11 ISO file that you can burn to a USB Flash drive or use as a standalone file if you are installing Windows in a virtual machine.
Whether you have a valid product key or not (see how to get Windows 11 for free or cheap), downloading a Windows 11 ISO never costs anything and there are two main ways to do so. First, you can download a Windows 11 ISO directly from Microsoft or use the company's Media Creation Tool to download the software and write it directly to a USB Flash Drive.