Registry cleaner is the software that cleans up the registry of a computer to optimize its performance and speed . Registry is the place on a computer where the vital data on its configuration and the installed programs are saved to enable the operating systems to make use of the same. It is an applet within the pack of the operating system. It keeps a log of the activities of the P.C. and can be well compared with a concurrently updated check list of the performance list of the system. In