Hi, kvignes1. Welcome. A reinstall might be in order. The Norton Remove and Reinstall Tool will replace your current copy with a clean one, in case of any corruption. http://www.norton.com/nrnr
Please note the Before you begin paragraph at the top of the page.
After the reinstall, run Live Update until no more are found. Let us know how you go.
You could also run a Windows file scan to see if that finds any problems.
Using the Command Prompt and run as Administrator, type sfc /scannow and let it run. Note the space after sfc.
It will attempt to repair any damaged Windows files.