Which of the following is used to store configuration settings and options on Microsoft Windows operating systems?

There is no standard Windows component called a 'Windows Config file' - this is not a recognized configuration storage mechanism in Windows.

The Group Policy Editor is an administrative tool used to configure and enforce policy settings across users and machines, but it is not the underlying storage mechanism for configuration data.

The Windows Settings app is a user-facing graphical interface for changing preferences, but it is a UI layer that writes data to the Registry, not a storage system itself.

The Windows Registry is a hierarchical database built into Windows that stores low-level settings for the OS, hardware, installed applications, and user profiles. It is organized into keys and values, and nearly all system and application configuration is persisted there. Tools like regedit.exe provide direct access to view and modify these settings.