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.

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 ...