Check your Windows Event Viewer App for errors (launch the app and go to Windows Logs->Application) If the Event Viewer Application log contains the following error: The process was terminated due to an unhandled exception. Exception Info: System.ArgumentException at System.Drawing.FontFamily.CreateFontFamily(System.String, System.Drawing.Text.FontCollection) a font in use by NVivo is not installed on the device. Download the Lato fonts and install them on your computer: https://www.latofonts.com/lato-free-fonts/ See the link for information on installing the font https://www.laptopmag.com/articles/install-manage-fonts-windows-10 Once you have installed the font, restart your computer.   If it still fails, click on the Submit a Case button on the Lumivero Community Home Page