My pc has two 4 GB HD, each of them has two partion. The first partion has NTFS and the second patioion (F) in the 2 HD has NTFS. Suddenly the PC hangs and one of my collegeu restarted the pc. For a supprise I have lost all my data from (F)and the file system changed to FAT. Please advise how can I recover my DATA..Or if you know any Virus which can do so…!!