A few questions. You say you have "apparently been infected with this virus three times".

1. How do you know? Did you get a message from somewhere? What did it say? Be precise.

2. What is the "virus" called; or how was it referred to when you were told that you had been infected? Did the information come from a virus scan? If so, which one?

There is an art to asking technical support questions (even on a music forum), and you must provide all the information you have if you want a useful answer. Otherwise you are just going to waste everybody's time, including your own.