Select the language, architecture, and edition of Windows you prefer. Step 3: Select Create installation media (USB flash drive, DVD, or ISO file) for another PC and then select Next. You must then confirm whether you want to upgrade your current PC or create installation media for another PC. A terms-of-use screen will pop up, and you’ll need to then select Accept. Step 2: Once downloaded, this ISO download tool makes it easy to turn any USB key into a bootable Windows 10 installer and allows you to download the Windows 10 ISO file for future use. The Windows 10 ISO download will begin downloading to your computer. Step 1: Next, a dialogue box will ask you if you want to save a program called 'MediaCreationTool22H2.exe.' Select Save file. Under the header that says Create Windows 10 installation media, select the Download tool now button. To get started, head to the Windows 10 download page. The best way to get a Windows 10 ISO file is from Microsoft. Image used with permission by copyright holder Downloading the ISO from Microsoft USB flash drive or DVD (if creating installation media for another computer) A Windows ISO download tool (we'll show you where to get this)