Because Windows 8.1 no longer receives security updates, . Use it only offline, in a virtual machine, or for legacy application testing.

Downloading a Windows 8.1 disc image in ISO file format from Microsoft can be a bit tricky, but it's still possible using official sources and direct links. By following this guide, you should be able to obtain a genuine Windows 8.1 ISO file. Remember to verify the file's integrity and use a valid product key for activation.

Use the Windows 7 USB/DVD Download Tool (which works for Windows 8.1) or a third-party tool like Rufus.

When you boot up an 8.1 image today, you are greeted by the "Start Screen"—a grid of live tiles that flip and rotate with information. It was an attempt to unify phones, tablets, and PCs. That dream died, but the design language lived on. If you look at Windows 10 or 11, the flatness remains, but the bold colors and full-screen grid layouts are gone, replaced by a safer, more boring start menu. The 8.1 ISO preserves that bold, aggressive visual style.

Instead, consider: