Here’s how you can download the Official Windows 10 ISO files Without Product Key. If you haven’t got free update of your Windows 10 yet, then no need to worry. just download the ISO file from the following links. And if you don’t know how to install Windows ISO files, you can follow this guide. Burn ISO images to USB
- A working internet connection.
- USB or external drive for the download.
- blank USB or DVD with at least 4 GB of space.
- Read the System Requirements.
- If you will be installing the operating system for the first time, you will need your Windows product key (xxxxx-xxxxx-xxxxx-xxxxx-xxxxx).
If you don’t know your product key then type the following command in CMD.
wmic path softwarelicensingservice get OA3xOriginalProductKey.