Hi DJMChicago, and welcome. If you've had a problem you think for an update not installing correctly, I suggest you use the Norton Remove and Reinstall Tool, which will give you a clean copy of your Norton product.
Please read the Before you begin note at the top of the page, and after the reinstall run Live Update until no more are found.
This may be more successful than using NPE as it will refresh your copy, and you may not need NPE, which can be a problem if you don't know what you're doing, as it can remove critical files.
let us know how you go.