It's free and open-source.

This process is called a clean install, which is ironic as there's nothing particularly clean about it: Microsoft has enshittified Windows Setup.

Vanilla Windows 11 is quite a storage-hungry operating system, but with this script, you can shrink it down to "just" 2.8GB. Since Microsoft is not willing to budge on Windows 11 hardware requirements ...

If you want to clean-install Windows 11 version 25H2 on an unsupported PC or remove unnecessary components for a lighter install, this popular requirements bypass app ...

In a nutshell: Microsoft continues to impose strict and, to many, unfair requirements for Windows installation, prompting users to push back by finding creative ways ...