The start-up of which program are you referring to? Can you get to the Home Screen? Do you have Premiere Elements installed? Or is this happening when you open the Organizer?
Here is a link to the problem related to Premiere Elements. The solution requires you to edit a text file (in Notepad). If you don't have Premiere, I can only find the text file for the Organizer on my machine. You can try making the same modification to the file at this location: C:\Users\[YOUR USER NAME]\AppData\Roaming\Adobe\Elements Organizer\19.0.
If you are not comfortable making these changes, I suggest you start a chat with Adobe Support by clicking on the blue Contact Us button under the Support menu on the Adobe.com website.