You can install RegCleaner 4.3 by first downloading the setup file to your desktop (see Resources). When you double-click on the file, the Installer window will appear. If you do not want a new start page or shortcuts added to your desktop, uncheck the top two boxes. The program unpacks the needed files and copies them to your system when you click the "Next" button after accepting the license agreement. When the files have been copied, you will see a shortcut on your desktop for RegCleaner.