A QCOW2 image is a virtual hard disk file. Unlike an ISO (which is an installer), a QCOW2 file contains an already installed operating system. This allows you to "spin up" a new Virtual Machine (VM) in seconds rather than minutes.

Why is this format "hot"?

Windows 11 is proprietary software. Microsoft does not officially distribute pre-installed QCOW2 images for public download.

Choosing the official path for Windows 11 ensures that you receive a stable, secure, and supported operating system. Here are a few reasons why: