ads provided by primawega how can i get rid of them?

now i know that there is a "loudmo contextual ad assistant installed on my computer and i can't seem to get rid of it. i tried going into uninstall programs and uninstalling it but even thoguh it said that it was uninstalled i am still getting the ads and it is still sitting in my program list. i ran malware bytes, super antispyware, iobit security, spybot, nothing has gotten rid of it, any ideas? right now i am running dr web, it has picked up a couple of things but so far no difference.