Win 10 1809 version became available to users after October 2, 2018. Win 10 1809 update is also known as Redstone 5.
Download Windows 10 Enterprise 1809 ISO
You can download the ISO file as Evaluation and MSDN to your computer. The Evaluation version of Windows 10 provides you with a 90-day trial period. The MSDN version is a complete version of the operating system that you know.
After you install the MSDN version on your computer, you must purchase a new license key. If you do not want to buy Windows 10, you can use the evaluation version which provides a 90 day trial period.
After selecting the operating system platform and system language you want to use, click the Download button. Windows 10 Enterprise LTSC version only supports English, Chinese, French, German, Italian, Japanese, Korean, Portuguese, Spanish.
You can use 90 days free of charge after downloading and installing Windows 10 Enterprise LTSC Evaluation ISO.
How to Download Windows 10 1809 Home/Pro Versions
After Windows 10 October 2018 update, you can download Home and Pro versions as an ISO file using Microsoft’s Media Creation Tool, or you can create a Bootable Flash Memory using this tool.