RCleaner RCleaner is an easy and convenient solution for cleaning the Windows registry from debris that has accumulated while your system is running. RCleaner will help you quickly and efficiently find and remove unwanted entries in the registry, and improve computer performance and stability. RCleaner only takes a few seconds to scan the entire registry. The program conducts a complete scan of all areas of the registry and finds old, invalid and obsolete entries. The results of the scan are presented as a list. Each entry is accompanied by a detailed description. You can select entries and delete them. RCleaner will help you quickly and easily clean up your Windows registry, thereby increasing your computer's performance and stability.