Once you have downloaded the highly compressed ISO, follow these steps to install it. Step 1: Extract the ISO

Microsoft does utilize advanced compression techniques to help users with slower internet connections, but within safe, functional limits.

This is the only method Microsoft recommends. It is a small, less than 20 MB, utility you download directly from the official Microsoft Windows 10 download page. The tool serves as a direct manager to Microsoft's servers. When you run it, you can choose to either:

Click the icon (the smartphone/tablet icon) or press Ctrl + Shift + M .