If you failed to install the Appeon components due to some reasons, then you need to follow up the steps below to clean up the Appeon components before you do the Appeon re-installation. Here let’s take the Appeon developer for example.
1. Download and run the msicuu2.exe as attached to install Windows Install Clean Up.
2. After that, go to Start->All Programs->Windows Install Clean Up to open the Windows Install Clean Up window.
4. Select the "Appeon Developer 2013" in the Installed Products list and Remove it (see the attached Windows Install Clean Up file ).