Which definition of Windows Registry is correct?

The Windows Registry is best described as a database that stores low-level settings for the operating system. This database is essential for the configuration and management of the operating system and the applications that run on Windows. It contains information, settings, and options for both the OS and installed software, such as user preferences, system hardware information, and system policies.

The structure of the Windows Registry consists of keys and values that categorize the numerous settings. Whenever changes are made to the system or applications, such as installing software, modifying configurations, or changing hardware settings, the Windows Registry is updated to reflect these modifications.

This central repository is critical for the overall functionality of the Windows operating system, allowing for flexible management of settings and integration of system components.