I have had that virus problem last year and TWO labtops of mine got totally screwed up with the viruses.
I spent a lot of money in having repaired the labtops but finally I canīt connect the with the internet without a firewall that makes them work incredibly slow or without risking another virus again.
So the solution for me was to buy a MAC. labtop.
These do not get any viruses. Thatīs the advantage and I must say, I am really happy with it.
On the other hand, mac is provided with little disc space and is prone to other technical shortcomings.
Wish U best to sort out your viruses!