Ok so my friend bought a WD MyBook Essential HD a few years ago and apparently formatted it incorrectly. I guess she used NTFS instead of FAT 32, the advertised size on the box said 1tb, instead it formatted somehow to 596gb, now usually the formatted size on a 1tb is something like 945gb or something like that. Needless to say it should not have come out that small. I tried to reformat the drive using both NTFS and FAT 32 I even tried WD's own software that is supposed to restore it to the factory specifications, it didn't work. Every time I tried it gave me the same 596gb size. I looked up the serial number online and it did indeed match up with WD's website saying it was a 1tb. I'm stumped any help would be appreciated. Thanks in advance.