First, please let me begin by saying thank you for including Antivirus with the Internet service. I was with TWC when they first started offering CA Security Suites and, at that time, it was better than McAfee. At the time that TWC switched to McAfee, I was skeptical about McAfee; but that was proven unfounded over the next couple years. However, McAfee is drifting toward the middle of the pack and heading lower again. Can we please switch to something better like BitDefender Total Security?
Avast and Microsoft security essentials are free and less intrusive...
Just make sure you COMPLETELY REMOVE any competing Anti-Virus software before installing any new competitor versions. More than one AV will conflict, slow down your system, and LESSON your security.