Microsoft has now made available ISO files of Windows 10 insider preview build 14366. You can read the what’s new and known issues in this build by clicking following link.

• Windows 10 Build 14366 Change log

With this ISO files you can perform clean install of build. It is just like downloading update files and installing it manually in free time. Most of the users are now familiar with this method. And also it helps for average users to get build.
Along with this files you will required a DVD or USB flash drive to install. You have to make your USB/DVD bootable with this files so that you can install it. All the instruction is given following link below.

Download ISO files of Windows 10 insider preview build 14366