"Windows 8.1," Elias muttered, squinting at the flickering screen. "The middle child of operating systems. Unloved, but today, you're the only one who can talk to this machine."
You can obtain the official ISO file by following these steps on the Microsoft Software Download page: download windows 8.1 disc image -iso file- - microsoft
This guide will walk you through everything you need to know about legally downloading the official Windows 8.1 disc image directly from Microsoft’s servers, verifying your download, and avoiding malware-ridden third-party sites. "Windows 8