Wise Registry Cleaner is a software tool designed to optimize and clean the Windows registry. The registry is a database that stores settings and options for the operating system and installed applications. Over time, it can accumulate unnecessary or outdated entries, which may slow down system performance. Wise Registry Cleaner scans the registry for these issues and provides users with the option to fix or remove them. In addition to cleaning the registry, Wise Registry Cleaner offers features like system optimization and backup options. Users can create backups of the registry before making changes, ensuring that they can restore it if needed. This makes it a user-friendly choice for those looking to improve their computer's performance.