When I want to know how to do some thing, I Google. I have never had to remove ransomware either, but the procedures here go along with how @starbuck describes the way he would remove ransomware.

http://www.pcworld.com/article/2084002/how-to-rescue-your-pc-from-ransomware.html

One of my favorite discussions is Norton Av. One night on Linkedin Biz Forum I belong to we did a survey of those who ever used a Norton AV and I did use it years ago...."has anyone ever seen Norton Av remove anything" was the question. 137 responses all said the same thing and that was no one we knew has ever seen a Norton Av product remove anything.

I have never had Norton remove anything either but then again it has not had to as it has never let anything in in 5 years. It has blocked plenty of intrusions though and a few false positives as well. but nothing is perfect but if tweaked a bit works well.;)

Wait that counts...you have had Norton repel something? That definitely counts. In fact you are the first person I have ever known that saw Norton do anything but update. Do you happen to remember how many times and what it repelled. This is important!