There are 5 steps recommended by many experts in preventing computer viruses

1. Get a firewall for your computer
2. Keep up-to-date with any O/S or application software updates
3. Get a good anti-virus program that can be kept updated.
4. Don’t open e-mail attachments if you don’t know what they are, even if you know the sender.
5. Delete any e-mail that may be questionable.