When you typically launch Norton Security, the application should launch immediately into the Norton Security dashboard. However, if you’ve recently launched Norton Security and suddenly experience a “Pending” progress bar that appears “stuck”, there are a few things that you can try.
First, be patient and wait. Let Norton Security attempt to launch into the dashboard normally. For troubleshooting purposes, give it a 15-20 minute wait before taking further action.
If Norton Security DOES launch into the dashboard, run LiveUpdate to make sure all the latest updates are installed then close out and re-launch Norton Security a second time. If Norton Security launches normally on the second attempt, you should continue to monitor for further issues. Hopefully, this was either a temporary issue or a software issue resolved with a software update via LiveUpdate.
If Norton Security DOES NOT launch normally into the dashboard, launch Disk Utility (In Finder, Go | Utilities | Disk Utility) and run First Aid on your Macintosh HD. This will eliminate the possibility of permission issues. After running First Aid, re-launch Norton Security.
If Norton Security again DOES NOT launch properly, it may be necessary to re-install Norton Security. The application may be corrupted or a recent update may have caused the issue. Before you can re-install Norton Security, you must use Symantec’s “RemoveSymantecMacFiles” to completely remove all Norton Security files.
You can download and obtain instructions for the “RemoveSymantecMacFiles” tool from the link below:
Follow the instructions to remove all Norton Security files. You will be required to restart your Mac. Once you have restarted your Mac, re-install Norton Security on your Mac using the latest installer (Important: Be sure to download and use a copy of the latest installer). After Norton Security has been installed, re-launch the application. Norton Security should launch properly after a clean installation.