Just purchased new Norton security deluxe and the remove and reinstall tool would not remove installed Norton 360. Norton removal tool did remove it and I installed new one. It opened and when I shut down and restarted my computer later it failed to open. I have uninstalled and reinstalled 2 more times and same problem...it won't open. Am running windows 7. Installed on my wife's computer windows 8 successfully! Please use plain language when responding!
[Admin Edit: Clarified subject]