I am trying to install Norton 360 which my ISP provides, and when I go to download it the screen says I have to uninstall McAfee Shredder.   I have run the McAfee uninstall several times but to no avail.  I have run PC tuneups, bought a registry cleaner, still no luck.  I don't even remember having Shredder when I bought my Dell computer, it must have been in the bundle that came with the computer.  Does anyone have any suggestions?