Obrigado silentw, tentei seguir os passos, mas mesmo assim nao consigo. Apareceram esses erros ao executar no linux:
Citar:ubuntu@ubuntu:~$ sudo ntfsfix /dev/sdb2
Mounting volume... Failed to startup volume: Invalid argument.
FAILED
Attempting to correct errors... FAILED
Failed to startup volume: Invalid argument.
Volume is corrupt. You should run chkdsk.
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ubuntu@ubuntu:~$ sudo fdisk -l
Disk /dev/sda: 4029 MB, 4029677568 bytes
32 heads, 63 sectors/track, 3904 cylinders
Units = cylinders of 2016 * 512 = 1032192 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x77b100e3
Device Boot Start End Blocks Id System
/dev/sda1 * 1 3880 3911008+ b W95 FAT32
Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x5b53df34
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 16266 130654200 7 HPFS/NTFS
/dev/sdb2 16266 17417 9239553 f W95 Ext'd (LBA)
/dev/sdb3 17417 18948 12296192 7 HPFS/NTFS
/dev/sdb4 18948 19457 4096000 7 HPFS/NTFS
/dev/sdb5 16266 17417 9239552 7 HPFS/NTFS
ubuntu@ubuntu:~$ sudo lilo -M /dev/sdb2 mbr
Fatal: /dev/sdb2 is not a master device with a primary parition table
ubuntu@ubuntu:~$ sudo lilo -M /dev/sdb2 mbr
Fatal: /dev/sdb2 is not a master device with a primary parition table
ubuntu@ubuntu:~$
Se repararem, "/dev/sdb2 16266 17417 9239553 f W95 Ext'd (LBA)" é a partição que esta corrupta.
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De tanto pesquisar e nenhuma solução já tentei formatar o disco, mas não consigo, visto que o disco esta sempre a "entrar" e "sair" (tipo: como se tivessemos a conectar o disco e depois disconectar).
Já nao sei o que fazer...!!!!
Edy 
