Registry Mechanic offers easy-to-use optimization tools to speed up and improve the stability of your Windows 7, Windows Vista , or Windows XP PC. Regardless of your level of expertise, Registry Mechanic safely cleans, repairs, and optimizes the registry and automatically backs up changes for future recovery. Now includes essential tools to fix Windows security loopholes. Permanently erase your Internet activity, personal files, and free space to keep your information away from prying eyes.