If the Windows 10 ISO was already settled on the computer, then you can just skip this part. If not, then you should download a copy of Windows 10 image from Microsoft website or third-party download sites. Installation and uninstalling A warm tip at here is to use a download manager to download the file, which is a much faster than browser download. However, if you have a physic copy of Windows 10 on a CD you purchased, then you can rip the file off an save the ISO image file on a local folder