Sometimes it may not be possible to uninstall a CodeTwo product using the built in uninstall feature in Control Panel: Add/Remove Programs.

The cause of the problem may be as follows:

- the installation of CodeTwo product is corrupt. The program will not open or reinstall.

- the program cannot be uninstalled because the files are damaged.

When you try to open or reinstall the program, the following error may appear (Fig.1.).

Fig.1. Error displayed during the reinstallation if the program.

To solve the problem and uninstall the program completely, download and install Microsoft tool named Windows Installer Clean Up. After you open the application from the Start menu, the dialog box listing all installed applications will appear. Choose the program you want to uninstall and click Remove (Fig.2.).

Fig.2. Windows Installer Clean Up dialog box.

The program will uninstall and you will be able to reinstall it.