My 320g wd passport detected as 2 tera

I have 320g and when i insert to my computer. the computer detected as 2tera disk size.

here the tools that i use but fails to format.

  1. Diskpart-  fails to format

  2. Mini Partition - detected as bad disk

  3. Data Lifeguard - detected as many bad sector.

Is there i can do to recover my files in my HDD. i have many important files that are save in my HDD

Thank you.

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Engr.JR,

Unfortunately, this is a sign of disk malfunction. If data recovery applications relevant to your drive do not result in a positive outcome, then you will need to contact a data recovery company to retrieve your data. We have a list of recommended preferred data recovery partners that you can use for data recovery services.

http://support.wd.com/recovery/index.asp?lang=en