Remember:
Downloading system images from unverified third-party repositories puts your personal data and network at risk.
For developers, Microsoft provides free Windows 11 Development Virtual Machines available in various formats (though typically .ova, .vhdx, or .vmdk, which can be converted). Technical Process: ISO to .qcow2
Files downloaded from unofficial sources can contain malware or keyloggers designed to steal credentials once the OS is booted.