Sounds like Norton did it's job and detected and removed some malware. What you're seeing is a leftover startup entry most likely.
Use msconfig (Start / Run / type msconfig and press Enter) to look at the processes starting under the Startup tab. If you don't see the Run selection, see here: How to Enable or Disable "Run" Command Dialog Box in Windows
There may still be additional malware on your computer though. Download and run a quick Malware Bytes Anti Malware Free
scan, see if it finds anything. Also do a full scan with Norton.