The simplest way to reinstall the Ummy Video Downloader is to download its installer, and then use the previous license to activate it. For this type of applications, you usually buy it one time and use it until the developers are in business. This is no different. Download the installer and then locate your license in the email used to purchase it.
If you have issues locating your license, contact the developers and provide them the purchase details and a new key will be issued to you.
