Hi Brian,
Are you getting any threat popup?
Please explain your issue in detail.
I'm not sure if I have a reoccurring cookie or if it's a virus that I picked up somewhere. How do I detect it and get rid of it?
Have you tried some free programs like malwarebytes?
In some cases, they really get the infected files and is very useful to make a quick test with them from time to time.
I download and install it every time I want, and then i delete it