i/o error on external hard drive

November 11, 2010 at 13:36:22
Specs: Windows 7
Hi, i have an external hard drive that i have trouble accessing.
i plugged in through the usb port, the spinning noise is normal, no click what so ever but the drive did not show up in "my computer", it was there in device manager though. When going into disk management, i was asked to initialize the disk for win7 to recognize it and is given 2 option, mbr or gpt however i am to scare to click on any of that because i don't want to lose any data on my ext.hd. I have also tried to use Paragon Partition Manager to see if i can access the drive and recovery any partition/data and Paragon gave me this error message "i/o error on hard disk drive 1 has occurred" and later it show up that my disk "111GB unlocated".

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#1
November 11, 2010 at 13:45:07
You are probably seeing the USB enclosure in Device Manager. That is not the same as seeing the drive.

Post all the information you see in Disk Management when you highlight that drive.


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#2
November 11, 2010 at 13:45:56
That sounds like the hard drive is busted. Take it to your local IT repair shop and see if they can recover the data off it and put a new drive into the case for you.

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#3
November 11, 2010 at 15:28:10
othehill, my enclosure is the generic one so i don't think device manager seeing only the enclosure.
here is the details of the drive detected (apart from my system hard drive) in device manager: Hatachi HTS541612J9SA00
in disk management:
Unallocated 111GB, need to initialize before the drive can be use

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Related Solutions

#4
November 11, 2010 at 15:32:26
now i the drive didn't even show up in disk management!!! arg....

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#5
November 11, 2010 at 15:47:04
ok, after 10 attempts now disk management display info of that drive again
to be more exact (word by word), here is what it displayed:
Disk 1, unknown, 111.79 GB Not Initialized
then the other column with a black bar it said 111.79 GB Unallocated
hope this helps
thank in advance p)

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#6
November 11, 2010 at 15:49:15
another question though, if i initialized the drive/select mbr, will i lose all the data on that drive????????????????

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#7
November 11, 2010 at 16:08:25
Yes you will. I would seriously look into data recovery first. Depending on how important the data is. What was the drive last used on?

Likely


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#8
November 11, 2010 at 17:30:41
Your drive may just have a corrupted file system or it may be dying. How much data was actually stored on it. If you get the drive to show again you have two chioces. You can first try to recover files or you can try to rebuild the partition.

If all that is wrong with the drive is a coorupted partition then repairing it is the easy way to go. On the other hand, if the drive is dying your may not have much time left to try a recovery. Is the drive making any unusual noises? You can try recuva to recover files and testdisk to repair the partition.

Read all instructions before using. Get both at the links below.

http://www.piriform.com/recuva
http://www.cgsecurity.org/wiki/Test...



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#9
November 11, 2010 at 18:29:02
I have PC Inspector File Recovery and it failed to recognize the drive so am just curious whether other data recovery software will work?

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#10
November 11, 2010 at 21:02:17
If the drive isn't showing in Device Manager or Disk Management then you won't be able to use recovery software. Verify the problem isn't the USB port by trying a known working port.

When the drive was giving you problems but showed in Device Manager, where in Device Manager was it listed? Under USB devices or hard drives? If under USB devices then it was the enclosure that was being seen.

In that case, you may be able to access the drive by removing it and connecting directly to the computer, or by use of other USB connection hardware. Keep in mind there are capacity restrictions on older motherboards and you also need to deal with the issue of connecting the drive to the computer.


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#11
November 13, 2010 at 17:16:38
It was listed under hard drives not usb devices.

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