Message: "We have detected an incompatible version of Symantec/Norton product..." or "A version of this product is already installed on this computer..." when installing Endpoint Security on a Mac

Products

• Endpoint Security

Issue/Introduction

Message: "We have detected an incompatible version of Symantec/Norton product..." or "A version of this product is already installed on this computer..." when installing Endpoint Security on a Mac

You may also see the following error:

• "The installation failed. The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.
  
  

Environment

Symantec Endpoint Security

macOS

Resolution

To fix this problem, remove any existing Symantec/Norton product by running the Uninstaller from application menu or drag application icon(s) to trash, run the RemoveSymantecMacFiles tool, and then reinstall Symantec.

STEP 1

Uninstall Symantec

RemoveSymantecMacFiles removes all the folders that are created by Symantec/Norton installers and any files within those folders including any you that have created.

1. First run Uninstall from application menu of any Symantec/Norton product currently installed, or drag application icon(s) to trash.
   
   
2. Run RemoveSymantecMacFiles tool to ensure all traces of previously installed products are removed.

STEP 2

Install Symantec

See Creating and installing a Symantec Agent installation package