There can be multiple causes that make this application stop working. Therefore, without an error or a pop-up message the single way to resolve this issue is to reinstall this application properly. With that being said, I recommend you to go to Control Panel > Uninstall a program > search there VuuPC Youre Always a Click Away > right click on it and select uninstall. After the process is finished, open the setup files and start the installation once again.