I'm sorry this happened to you. We had it happen three times when we lived in Colorado. Took almost a year for the one to clear up.
Anyway, during Thanksgiving weekend, I had a major virus attack my e-mails. My DH spent 3 - eight hour days on the phone with techs getting the problem cleared up only to have a smaller one return. Long story short-we did not have to get a new puter, we did get an external hard drive, we back up everything so did not loose anything, and now my DH is more careful about his e-mails and and which ones he opens. We think he sent me a bad one from someone else and that's how it started.