The most common way is via the official Microsoft download page . You download a small tool that allows you to "Create installation media (USB flash drive, DVD, or ISO file)" for another PC.
Before you can use your downloaded ISO, ensure your host computer is ready to run virtual machines. Windows Hyper-V Virtual Machine Tutorial download windows 10 for hyper v
If you are on a non-Windows device (or use a browser "User Agent" switcher to mimic one), Microsoft’s site will offer direct download links for the Windows 10 ISO instead of the tool. The most common way is via the official
For testing and development, you can download a full-featured Windows 10 Enterprise evaluation that lasts for 90 days. download windows 10 for hyper v