So what you’ll want to do is purchase/get hold of a USB flash drive with at least 8GB space on it, get access to a working PC or laptop and navigate to this page and click on the ‘Windows 10’ option. There you will be able to create the installation media needed for a clean install. Just to warn you, make sure that there’s no files on that USB drive that you want to keep, they will all be erased when you begin the process.