Hello friends i have a hard disk of WD my passport size. Its working very fine from 2 years . One day i went to market and installed ps3 games from the shopkeeper desktop. Next day when i plug my hard disk it showing to format your hard disk. But all of my data will be erased. I concerned with my friends they are saying it got viruses. SO which antivirus is best in this situation. Please suggest me answers , so that i can backup my all data .