This article explains how to download the official Windows 10 ISO from Microsoft servers using different methods. The Media Creation Tool downloads the latest version of Windows 10 by default. You can also use Rufus or other third-party tools to accomplish the task. These third-party tools let you download any edition, build, or language ISO of Windows 10.
Microsoft hasn’t released the official hash checksum (e.g., SHA1, SHA256, etc.) of the ISOs on their website. If you’re hesitant to use 3rd party tools to download the ISO, note that regardless of any method (or tool) you use in this article, the ISO file will be downloaded from the Microsoft servers directly.