Could you please upload your Extra folder? I will sent you a new one, that works .
Use the GT 620! . After my Extra package, you should be able to install the nvidia drivers.
But I think your HD is about to die.. Or just some faults about the NTFS reading.
NTFS volume name 1TB External, version 3.1.
SAM Multimedia: READ or WRITE failed, SENSE_KEY = 0x05, ASC = 0x24, ASCQ = 0x00
SAM Multimedia: READ or WRITE failed, SENSE_KEY = 0x05, ASC = 0x24, ASCQ = 0x00
SAM Multimedia: READ or WRITE failed, SENSE_KEY = 0x05, ASC = 0x24, ASCQ = 0x00
SAM Multimedia: READ or WRITE failed, SENSE_KEY = 0x05, ASC = 0x24, ASCQ = 0x00
SAM Multimedia: READ or WRITE failed, SENSE_KEY = 0x05, ASC = 0x24, ASCQ = 0x00
HFS: Vol: WD SmartWare Very Low Disk: freeblks: 0, dangerlimit: 1159