Do you want to install the latest build of Windows 10 using an ISO? Then use this guide to turn the install.ESD file into an installation media with the most current version of the operating system.
When you need to do a clean install or upgrade to Windows 10, similar to previous versions, Microsoft provides the installation files through a new ESD (Electronic Software Delivery) image format, which is commonly available via Windows Update.
Full story from the WindowsCentral blog...