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Hard drive can not be access I/O error. Data recovery needed. Please help

Please help....

I have a 500GB Sata hard drive from a toshiba laptop. The hard drive is only 6months old.
It seems to develope a fault. I have taken it out of the laptop and connected through cables to another laptop to access it and recover some important data. I can see the hard drive under the Device Manager and under the Disk Managment.
Under the Disk Managment it shows three partitions (1. 400MB System, Healthy(Unknown Partition) 2. 232.88GB Healthy (Active)  3. 232.49GB Healthy . The Disk is shown as Basic and Online.
However, if I go to My computer it either takes ages and I shall get into it or when I go into it I can sometimes see the partiotions 2 and 3  and can only access 3 which id HDD Recovery. The 2 one shows I/O error. I checked the disc properties and it shows that the disc is working correctly.

I have also tried to do it in the Safe mode and the same thing happens.

I would be gratefull for any suggestions. The OS is Windows7 Basic
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Remap
Asked:
Remap
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2 Solutions
 
Maximvs13Commented:
I hope you have a back up of your files, scan the drive with UBD4 or Seagate utility to check for bad sectors with an attempt to recover any if found. Format the drive and reinstall if necessary.
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RemapAuthor Commented:
There is no data backup. all the data is on a faulty hard drive. I would like to retrive at least iTunes....
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RemapAuthor Commented:
This is a Toshiba hard drive  MK5055GSX
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Maximvs13Commented:
attach it to an external hard drive reader and see if you can pull the files that way
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RemapAuthor Commented:
what do you mean the external hard drive reader
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Maximvs13Commented:
An external enclosure that will read a hard drive, you can find them at any computer store. Or you might even know someone who owns one. Google search (External SATA Enclosure)
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JParker505Commented:
Try running check disk  chkdsk /f on the partition you want to access....


If that is not successful Spinrite is a great tool but its not free

http://www.grc.com/sr/spinrite.htm
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Maximvs13Commented:
I would scan for viruses and spyware as well
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DavidPresidentCommented:
Chkdsk can actually do more harm than good in this situation.  Chkdsk  will blow away what may be recoverable files, and if your disk is a ticking bomb, meaning you have little pieces of ferromagnetic material flying around at 7200 RPM inside, then any I/O will make things worse

1. If budget allows, $500+, and data is worth that much to you, then contact a professional data recovery firm.
2. For a DIY, spinrite is as good as any of them.
3. Putting it into an external reader will not help in any way, this is classic partial media failure.  

There is an outside chance this may be caused by a virus, but odds are very much against that.  Doing a virus scan can make things worse. No matter what, decide quickly, keep disk powered off until you are ready to recover.   Every moment the disk is turned on could be the last one.

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BitsBytesandMoreCommented:
I will strongly agree with dlethe at this time.  DO NOT RUN CHKDSK.
By what you are describing and especially If the drive is making any unusual noise (something like a metallic noise of something hitting something) ... stop whatever you are doing.
It's decision time:
A. Spend the money to recover the data or with a Data Recovery Service or
B. Try to do it yourself and be prepared to lose the data unless a blue moon comes out tonight.
In case the iTunes music is not worth that much money, then again I agree with dlethe, SpinRite is a good option ($89) http://www.grc.com/spinrite.htm
You can also try to use Hard Disk Drive Regenerator from http://www.dposoft.net/#b_hddhid
"...Almost 60% of all hard drives damaged with bad sectors have an incorrectly magnetized disk surface. they have developed an algorithm which is used to repair damaged disk surfaces. This technology is hardware independent, it supports many types of hard drives and repairs damage that even low-level disk formatting cannot repair. As a result, previously unreadable information will be restored. Because of the way the repair is made, the existing information on the disk drive will not be affected!

Since the program does not change the logical structure of a hard drive, the file system may still show some sectors marked earlier as "bad", and other disk utilities such as Scandisk will detect logical bad sectors even though the disk has been successfully regenerated and is no longer damaged by physical bad sectors. If you want to remove these marks, repartition the hard disk drive...."
It uses a very similar algorithm method as SpinRite where it reads a 0 or a 1, writes and replaces it with the opposite on the drive, then deletes it a writes back again the original 0 or 1 thus making sure the drive is readable and writable ($39).
In any case, whichever you decide to use, use it only if you have decided that you are willing to lose the data and this is your last resource.
Bits ....

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DavidPresidentCommented:
Bits - I'm very tempted to hook up an analyzer to a running copy of HDD regenerator.  Frankly, my expectation is that their algorithm is not much more than ...



for (BlockNo = 0; BlockNo < Capacity; BlockNo++)  {
  StartTimer(0);
  for (ReReadcount=0; ReReadCount < UserDefinedRetries; ReReadCount++) {
     if (ReadAndRecoverIfPossible(BlockNo) == SUCCESS)
         break;
     if (StartTimer(UserSelectedTimeout) == EXPIRED)
         break;
  }
}


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noxchoGlobal Support CoordinatorCommented:
No CHKDSK! The guys above absolutely right. Chkdsk often does severe damage to the data.
The problem could be with Windows trying to access the partitions.
Try to get to this drive from non Windows mode.
Download free Rescue Kit tool from this link: http://download.cnet.com/Rescue-Kit-Express/3000-2094_4-10910591.html
As soon as you download it execute the file and let it burn itself to CD.
Boot the laptop or any other PC with this drive connected from Rescue Kit CD.
Select Normal Mode - File Transfer Wizard. Try to browse your partitions and copy out data from the drive to another drive.
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nobusCommented:
well - i can only add he can run the free trial of HDD regenerator (does nOT exist with Spinrite) to check if an error pops up AND is repaired.
if so buy it, and run it completely; i can tell it has recovered for me already 3 disks, reported BAD by diags, and unaccessable. - 1 was even blocking up Spinrite....but HDD reg did work..

and none came back yet; so yes i can vouch for it!!
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RemapAuthor Commented:
the hard drive does not make any clicking noise/sound. I tired to run a rescue kit with a oprion of data transfer/recovery from a deifferent vendor. It always works, however this time it could not scan the disk connected to one of the USB ports on my laptop. I know that HDD regenrator can run for days. I used it once but gave up 7 days of working on a hard drive. I might give it a try once again.
Can HDD regenerator scan and deal with a hard drive connected to a USB port on a laptop?
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nobusCommented:
i have run it on 40 - 80 Gb drives in about 6-8 hrs
it does NOT support usb, you have to connect the drive directly to an IDE or Sata port
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RemapAuthor Commented:
The thing is that I do not suspect the hard drive to be damaged. It is visible under the system.
The disc I was trying to regenerate using HDD regenarator before was a sata one of 250GB.
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RemapAuthor Commented:
I am running HDD regenerator. It is just a beginning and it already found 34 bad sectors which have been repaired.

It the software goes through the whole hard drive and repair all bad sectors would I be able to recover the data by connecting the drive through USB cable to another laptop?
38 bad sectors...
Cheers
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BitsBytesandMoreCommented:
I'm glad to hear that you had the HDD Regenerator... it really pays for itself.
"...It the software goes through the whole hard drive and repair all bad sectors would I be able to recover the data by connecting the drive through USB cable to another laptop?..." if it gets repaired... Yes. You may, after recovering the data even be able to boot to it.
I have noticed though, that after running either HDD Regenerator or SpinRite that you always, well, at least I have, needed to run Chkdsk after. Make sure you try to recover the data first.
Bits ...
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DavidPresidentCommented:
do not use chkdsk, it is more concerned with giving up on broken files then worrying about the data integrity.  use the runtime.org NTFS product.  If you have any corruption at all in the MBR, partition tables, or parts of the filesystem that say where the rest of files are, or where they start ... chkdsk will just blow them off and move on, and you'll lose that data.

The runtime.org software will probably run all weekend, but it takes stance that anything can be broken, so it will manually reconstruct (hence the name) the filesystem via basically a brute force algorithm.   It is free to try,and will even let you look at files it recovers, but you buy if you want to save them.
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nobusCommented:
i would look if the data can be accessed after HDDREg terminates.
you cna still try the other options then..
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RemapAuthor Commented:
Cheers
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DavidPresidentCommented:
VERY IMPORTANT ...

You MUST keep the hdd regenerator log of bad and recovered blocks.  Then pipe them into the runtime.org product so it knows what blocks were "repaired". it does not need to know about recovered blocks, because, by definition the data was recovered via the brute force re-reads.

The reason is let us assume block #100 was repaired by hdd regenerator, and block #100 was part of a data file or worse, an important EXE/DLL or registry hive.

Net result is you now have 512 bytes of zero at the remapped block #100.    So whatever file that block #100 belonged to is now corrupted.  The runtime product needs to know that block #100 now has incorrect data.   So by telling runtime's reconstructor block #100 is corrupted, you can learn the name of the corrupted file and mark it as corrupted.

This way there are no surprises. You know what files are corrupted.

If you just run chkdsk, then chkdsk has no idea that this particular file is corrupted, unless the damaged 512 bytes appears at beginning of file, (which means it will just toss it away or somewhere else that causes a checksum to be incorrect).

So by doing this multi-pass recovery you get better results.

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nobusCommented:
you don't need all that ...if it's repaired it's ok. period.
just my experience with it !
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DavidPresidentCommented:
So what does HDD regenerator do with a file that has an unrecoverable read error in it?   Very curious. Does it properly report this?
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AnnOminousCommented:
Your priorities are:
1) Save your data
2) Repair your disk

The first thing you should do is GET THE DATA OFF THE DISK using a tool that images the drive so that it can be analyzed later at your leisure. I have successfully used R-Studio, but others may work better. I have even used Ubuntu to read files from an NTFS partition that Windows itself reported as RAW.

The fact that the drive is recognized correctly only means that the electronics work. If the drive surface is damaged, the more it spins the worse it gets. Trying to fix it in that case may only make it worse.

So get your DATA first, and then you can try to 'fix' the drive.
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nobusCommented:
it reports it as unrecoverable - that's why i said : if it's repaired !
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nobusCommented:
tx for the feedback - and have a nice day !
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BitsBytesandMoreCommented:
Hello Remap,
You chose for the "Accepted Solution" the same answer I had offered nearly 6 hours before in my CommentID: 29405464. I'm assuming that you may have not noticed.
Bits ...
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noxchoGlobal Support CoordinatorCommented:
I stand up with Bits here. He was the first who did suggest HDDRegenerator if it did really help. His answer CommentID: 29405464 gives the suggestion clearly so best to accept it and as assisted by nobus comment ID: 29431393.
I guess nobus will not object.
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nobusCommented:
i won't object to anything, but on EE not always the first reference is honored; i had several such cases myself.
maybe my explanation was liked better?
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RemapAuthor Commented:
Hi guys,

I am sorry for a dealy in replying but the life was very busy recently with the second baby.
I appreciate all you effort and suggestions in helping me. Bits you suggested to try HDD Reg and even brought some technical explanation about the whole process. Thanks. I must say I was not thinking of trying to use it until nobus made his comments about HDD Reg which were backed up with some examples

"...i can tell it has recovered for me already 3 disks, reported BAD by diags, and unaccessable. - 1 was even blocking up Spinrite....but HDD reg did work.."

and at this point I was convinced to use it. As you can see I have not forgotten about your suggestions on HDD Reg and awarded you with points. In my view you both deserved points and that was what I did. I must agree with nobus "... on EE not always the first reference is honored..." it is the way the answer is formed.

I hope that my explanation is clear
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RemapAuthor Commented:
I have just posted a reply
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BitsBytesandMoreCommented:
Thanks for the feedback Remap... I appreciate it.
Actually... you had left me out when awarding the points... this is why I asked if you had "not noticed" my comment recommending HDD Regenerator.
I would never recommend something that I have not tested myself and if I suggest to someone try something, I'll tell them to try and specifically mention that I haven't tested...
Thanks again for coming back and providing some feedback.
Bits...
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RemapAuthor Commented:
Bits,

If I had left you out than I do apologise. Is there a way I can change that and award you points. I was certain I did that...
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BitsBytesandMoreCommented:
No problem. I was just trying to understand. The question is open again. You are now able to re-award/re-assign points. Thanks again.
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RemapAuthor Commented:
Great stuff. Many thanks again for helping and speak to you soon.
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