Uninstalling application returns Error 1605

4/26/2018 11650 Contributors

This error is returned when you attempted to uninstall an application that isn't actually installed on a target system. Error 1605 is a Windows error which means "ERROR_UNKNOWN_PRODUCT". Below is a screenshot from PDQ Deploy pro mode where a command is configured to uninstall Adobe Reader. Notice that you can add 1605 to the Successful Return Codes field so that the deployment won't return an error if the Adobe Reader doesn't exist.