Some features may break after major Windows 10 "Feature Updates" (like 21H2 or 22H2). You may need to re-run the installer if a Windows update overwrites your changes.
Perhaps the most significant "dropped" feature, MFI allows you to reinstall a functional version of Media Center on Windows 10 for HTPC enthusiasts.
It is highly recommended to create a System Restore Point before using the installer, as it makes deep changes to the registry and system UI.