Before I upgraded to Comodo and Avira, I had Norton Internet Security and Norton System Works Premier. I found Norton difficult to uninstall totally. Here are links I found to help with the process:
The GEAR ASPI driver could potentially interfere with CD/DVD burning or ripping with other drivers. I used the manual method of removal, but I now see that there is an executable for this at:
Hope this saves time and frustration for others.