Download the RemoveSymantecMacFiles Utility Once downloaded, you must follow these instructions to run the uninstaller: Double-click the RemoveSymantecMacFiles. zip file that you downloaded to unarchive it. Open the RemoveSymantecMacFiles folder. Double-click the mmand file. Before restarting your computer, save your work and close the open applications, type y and then press return. Why you should uninstall and remove Norton Antivirus Mac Norton AntiVirus Mac runs a lot of background processes which use excessive memory and CPU, leaving less resources. To run this tool, you must be logged in to your Mac with an Administrator account with a non-blank password. On the application warning dialog box, click mmand file is launched in the. Learn how to uninstall Norton Internet Security from your Mac. It is, for the most part, unnecessary to need an Antivirus program on Mac OS X as it has built-in malware protection and Apple releases regular security updates to quickly resolve the latest security flaws More Information about Uninstall Norton AntiVirus Mac Uninstall Norton Macworld. See how to uninstall and reinstall Norton products such as Norton Security, Norton. Norton Remove Reinstall tool helps to uninstall and reinstall your. Norton.