External 1TB HDD Is "Stuck" in RAW Format

I have spent the past few weeks trying to resolve this problem and all attempts thus far have proved fruitless.

I have attempted all of the commonly-suggested things to do which include:

• Formatting the HDD (I receive an error message, sometimes an I/O error message)


• Creating a new partition (this works, but I am unable to save anything onto the HDD. I have tried creating both small (5GB) and large (931GB / maximum capacity) partitions, and although both are successfully created, they are useless)


• Analysing the disk using testdisk (further error messages)


• Attempted recovering some files using Recuva (HDD was inaccessible - another error message)

Background:

I have had my 1TB portable (Passport) external HDD for just over one year. It has not been dropped, squashed, bumped, etc. - I have taken wonderful care of it as I do with all such items.

I am happy to lose everything on the HDD - I just want to get it back to a working / useable state once more and it appears that, thus far, nothing is working and I'm beginning to doubt that anything will.

I should also add that, once a partition(s) has / have been created, I am still unable to format the HDD.

Any suggestions would be greatly appreciated.

Many thanks.

UPDATE:

I am wondering if removing the HDD from its enclosure - and either using it like I would an internal HDD or replacing the casing - could help matters as I have read that, in a few cases, the enclosure could be failing - any thoughts on this possibility?

Answer

There are only two possibilities:

• 
  

  Your hard drive has gone bad.

  
  

  Compared with other computer components, hard drives wear out wear out abnormally fast. It's not necessary to drop them or anything else. They just do.

  
  


• 
  

  Your USB controller is faulty.

  
  

  Generally, if this happens, you cannot access the HDD at all, but it is possible.

  
  

Unless you can access the drive's S.M.A.R.T. data via the USB controller, the only way to reliably find out which one it is would be to remove the HDD from its case. This is usually possible without seriously damaging the case.

Once removed, you could access the HDD directly using a SATA port in your computer (assuming it doesn't use a proprietary connection). Once you know if it's the controller or the drive itself, you could replace the faulty part.

You'd also have access to the drives S.M.A.R.T. data via the SATA port. Frankly, I'm expecting a large amount of reallocated sectors...

Of course, if the drive is still under warranty, just get in touch with WD. Opening the case would void the warranty.