The popular Rufus tool has a built-in script that allows you to download any version of Windows 10 directly within the app.
Windows 10 version 1607, also known as the Anniversary Update, was released in August 2016. Although it's an older version of Windows 10, there are still scenarios where users might need to download and install it, such as: download windows 10 version 1607 iso
If the official route fails (it often does for consumers), proceed to Method 2. The popular Rufus tool has a built-in script