Szóval FUD. :)
"If you want to just download the installation media for a fresh reinstall of Windows 8.1, there’s a new option from Microsoft that can allow you to download that image without even entering your product key."
http://www.howtogeek.com/186775/how-to-download-windows-7-8-and-8.1-ins…
Üdv,
Marci