The Windows operating system maintains information about its settings and installed programs in a database called the Registry. It always downloads the entire database to memory at startup so that it has the information it needs quickly at hand. As programs are installed, uninstalled, and deleted, the database grows, reducing your computer's performance.
Registry Medic can scan the Windows Registry and find erroneous and broken entries there. It then repairs these entries (for example, if an installed program has been moved) or deletes them (for example, if manual file deletion was used instead of uninstalling a program). This reduces unnecessary load on the system and makes the whole computer work better.
Additional functionality of the program includes the removal of Trojans, which also sneak into the Windows Registry and can damage your data, for example.