Hello @Fran101,
Thank you for reaching out to the Quicken Community, though I do apologize that you are experiencing this issue.
Have you tried uninstalling/reinstalling Quicken? Please refer to the following support articles for instructions on uninstalling here and reinstalling here. However, after you have uninstalled and before you proceed with reinstalling, please open your Windows File Explorer and navigate to This PC > C: Drive > Program Files (x86) and delete the folder titled "Quicken" (doing so does not affect your data files). After you have deleted this folder, go ahead and try reinstalling it. Let us know how it goes!