Smart Windows Installer Cleanup Utility Pro - Version 4.3.8 Smart Windows Installer Cleanup Utility Pro is a well-known tool to clean windows installer error. The Windows Installer is applied for installing program on your windows system. If you encounter a window installer error, you can update it through windows update. Luckily, Smart Windows Installer Cleanup Utility Pro is able to update windows and fix variety of installer errors. With Smart Windows Installer Cleanup Utility Pro, all kinds of windows installer error can be fixed in a few minutes.Besides fixing windows installer errors, new version Smart Windows Installer Cleanup Utility Pro has updated some amazing functions. It is a powerful tool set which can fix 50+ common system errors, and repair dll problems, winsock, print spooler, and file association and ActiveX problems. It will help identify and fix Windows' invalid registry entries. By running Scan & Cleaner as part of scheduled maintenance, it will keep your PC from freezing or frequent crashes. Using it will reduce the probability of you getting a "blue screen", program not responding