What do these HDD failure symptoms sound like (possible data recovery)?

OfficeJerk

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Apr 1, 2014
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Hi

I was running a laptop which developed a power issue and would not progress further than the black and white startup screen upon boot without entering a continuous rebooting loop. So I removed the internal HDD which is a Seagate Momentus thin 320GB and hooked it up to a functioning desktop through sata usb cable and tried to copy some files across.

I noticed that this process was taking a lot longer than usual as It was taking over an hour to transfer a 100mb video. So after the video finished, I removed the drive safely from the desktop and connected it back to via sata usb to begin the long process of copying my files, but when I did this, I could no longer access the drive in windows explorer. I constantly get the following message: E/ is not accessible, the request cannot be performed due to an I/O error.

I have tried various data recovery software but they either cannot locate any partitions, or once scanning has finished, say there are no files to recover. The drive letter and the correct name of the disk are the only pieces of information left when vieweing the drive. Its also worth mentioning that upon inspection in device manager, it lists the drive as a RAW device now, when it was previously NTFS. Also, i can see the 'System Reserved' Drive right next to the E drive and that shows normal file size and can be accessed but there is no viewable folders. The HDD is making very quiet sounds which only can be heard if you put your ear right up to it, sound clip here - http://vocaroo.com/i/s1xlxhDy1QOd

I have also connected it up to HDSentinel and it produces the following report:

Failure Predicted - Attribute: 5 Reallocated Sectors Count, Count of sectors moved to the spare area. Indicate problem with the disk surface or the read/write heads.
There are 2395 bad sectors on the disk surface. The contents of these sectors were moved to the spare area.
The drive found 1423 bad sectors during its self test.
There are 1423 weak sectors found on the disk surface. They may be remapped any time in the later use of the disk.
5580 errors occured during data transfer. This may indicate problem of the device or with data/power cables. It is recommended to examine and replace the cables if possible.
Replace hard disk immediately.

What are your thoughts?
 
The drive is no longer usable.

It's the main system partition which has failed, since it undergoes read/write operations every day, causing wear to that portion of the disk.

By contrast, the 'System Reserved' partition is rarely if ever written to, so it hasn't suffered the same degree of wear-and-tear and is still intact.

The drive will have to be replaced as indicated clearly by HD Sentinel.

Needless to say, you should have kept your data backed up to another drive as a matter of good practice, since all hard drives fail sooner or later.