I had Kaspersky and deleted it using a Mac app called AppCleaner. It got rid of everything I thought. But now I cannot install Norton as it keeps telling me that I have Kaspersky and will not install Norton. I did not use the Kaspersky uninstaller as I didn't even think there was one and so used the wrong method to erase it. I just bought Norton and now have no protection at all as it will not allow me to install it. HELP!