This is the software publisher's description.

Residual files, unused and undeleted drivers, and corrupt or bad entries in registry settings will quickly litter even the newest of computers. The result? Frequent error messages, slow start-ups, declining and poor performance and registry integrity, unstable and frequent application errors and crashes, and, at times, even an inability to start Windows.

RegistryBooster is the safest and most trusted solution to clean and optimise your system, free it from registry errors and fragmented entries. Through Advanced Error Detection Technology, RegistryBooster automatically identifies missing, corrupt, or invalid items in your Windows registry and dramatically enhances performance and general stability.

One mouse click and RegistryBooster does the rest. And, using RegistryBooster regularly keeps your PC free from errors and from obsolete, unused or unwanted files.

Note that the latest 2010 edition ships with much-improved faster Registry scanning, better scan results report and much more.