Get hold of F.I.R.E CD, a free-of-cost and freedom-based live GnuLinux cd that checks everything on your hard disks safely without installing any software. Yes, it even checks NTFS partitions. The name stands for Forensic and Incident Response Environment. Find out more at http://fire.dmzs.com/. Do read the features list and the F.A.Q section. Download the CD from the website from a high-speed net connection, such as at a cybercafe. No Indian computer network is safe without such tools anymore.