Removing this Anti-Theft on my Toshiba Laptop

I have removed the rest of Norton's products from my laptop but it has not removed this Anti-Theft thing and it keeps popping up on me to tell me I need to activate it. How do I get rid of it. I don't want it at all. My Anti-Theft Version is 1.10.0.9. I get sick of programs that refuse to be removed.