"Setup" can't be opened because Apple cannot check it for malicious software.
Article ID: ART175484 | Date published: 10/16/2019 | Date last updated: 10/16/2019


Catalina OS... What to do if this message appears while trying to install the printer



  1. Click OK


  2. Control Click (hold down the "Ctrl" key while clicking) the setup icon.

  3. Click Open

  4. Click Open