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How to deal with bad file records?

13K views 14 replies 4 participants last post by  BIGBEARJEDI  
#1 ·
I have a some western digital hard drives in my computer and every time I boot up the computer I get a list of the same unreadable file record segments.

I could not seem to find a way of finding out which hard drive had the problem as I had four hard drives in the computer. The message says "one of your hard drives needs to be checked for consistency" but which hard drive.
I noticed that it also deleted invalid filenames so I took note of the list of filenames which gave me a clue to which hard drive had the problem.

As the problem partition of the hard drive also had my operating system I reinstalled the operating system (Windows 7) on to a different hard drive.

I'm going to copy the files from the faulty partition to an external hard drive before they get deleted as a invalid file name or some other reason. Should I next try to format the faulty partition?
I have also right clicked on the suspected faulty partition, selected properties and under tools I've checked the hard drive for errors but no errors were repaired and it says that it is healthy.

When it does the hd test after booting up the computer the report says 261 bad file records and the segments are grouped together so it is one bad area of the hard drive thats faulty.
In this case the hard drive is a black western digital 2 GB hard drive which has only been in the computer for less than 2 years.

Any advice would be most welcome thanks.

Regards Brian
 
#3 ·
I tried to run choose from the des prompt but get the pop up message
"Access denied as you do not have sufficient privileges.
You need to invoke this utility running in the elevate mode".
I'm not certain what this means
 
#4 ·
Go to Start/Search and type CMD, Right click the CMD results and Run As Administrator. In the Elevated Command Prompt, type the drive letter of the problematic drive (eg) G: and press enter (eg) G:\> at this prompt type chkdsk /R and press enter. Now type a Y for Yes to Unmount the drive if a secondary drive. Check Disk will go through 5 stages, it will take a long time, possibly over night.
 
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#7 ·
If I follow what you are attempting, I believe you're going to have problems. Attempting CHKDSK and other repairs on a hard drive that you've copied a partition to FROM ANOTHER HARD DRIVE, rarely works; :uhoh: as the hard flaw sector errors on the source hard drive will almost always 99.99% of the time be in different locations on the target (or backup) drive. Therefore, when CHKDSK and other utility programs attempt to remap the damaged data, the flaws are in different locations on the new drive from the old, or most likely if your target drive is brand new, there are no flaws to remap, and the CHKDSK program will crash while attempting to figure this out. :frown:

What I would suggest is to use data recovery programs such as Testdisk(linux), Recuva(Windows), or GetDataBack to recover as much from that damaged partition as possible. You can also attempt to "clone" the damaged partition from source drive to the target drive, and use advanced recovery tools there. Post back if you wish to go this route, I can't remember the names of those other programs, but my Teammates will and can help you with that.

If the information on that damaged hard drive is of importance to you, you have 2 other options as well. 1st option is to take to your local Computer Pro and have them attempt Level1 data recovery on that drive. I would take the source drive in to them for that, not the copied target drive. This will run about $35-$95. This means that you will have to allocate or purchase another drive temporarily at least for use as your Windows7 boot drive in the computer or laptop that you are using while the source drive with the damaged partition is out getting data recovered from it. You mentioned you had several WD drives; you can use any for this purpose. But, if you have a WD Black drive, you should consider using it for the long haul on your computer, as it's the best quality, longest-lasting.:wink: If not, any of your other drives will do as long as you test them first with DLG (WD diagnostic) available for free download in my signature below.

2nd option is very, very expensive forensic Professional Data Recovery which starts at $250 and goes up from there; takes 3-9 weeks to get your data back. Post back if you want Company recommendations.

You'll also have to have a sit down with yourself on "how much money is the data on that damaged source drive partition worth to me?" at some point if you reach my 2nd option here. If you have irreplaceable documents such as Tax Returns or Family Archive Photos, that sort of thing and you don't have them backed up on any of your other drives you mention.

BIGBEARJEDI :popcorn:
 
#8 ·
@BigBearJedi, the OP is not trying to repair a drive that he has copied files from another drive, he has backed up his files from the troubled drive to another drive to save the data. If he was successful he will not need the recovery programs
@Briannz, When Running Check Disk (error checking) If you didn't check both boxes when right clicking the drive, you will not Fix the drive. Which means that Windows scans the drive and marks the sectors that are bad and tries to move the data to a good sector. This same affect is done by doing Check Disk with the /R switch (eg) chkdsk /R. This is the more preferable method as it runs outside of Windows. the Files that are on the bad sectors currently may be corrupted as there may be too many bad sectors to be able to recover all of the files on the drive and make the drive usable again. Once Bad Sectors start appearing, they start spreading. Doing a Check Disk may be able to extend the life of the drive, but if your data is as crucial as you say, then I would not trust this drive again.
 
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#9 ·
The chkdsk did not complete it's process.
The list message was chkdsk is scanning unhindered files for e connect to their original directory.
12 percent complete (23 of 755 unindexed files scanned)
An unspecified error occurred (6672732e637878 41a)

The drive I tested appears to be still unmounted, how do I mount the drive I was testing so I can access it?
 
#10 · (Edited)
The drive has failed. It needs to be replaced.
If you were successful copying your data off of the drive, then you don't need to mount it, because it has failed and needs to be replaced.
If you haven't backed up your files from the HDD yet, then you can use the Free TestDisk program. I have had the best luck with GetDataBack. You will need another drive of the same size or larger to restore your files to.
 
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#11 ·
But I would need to access my drive first.
It shows up in the list of drives in this case drive F: but does not list any information about the drive such as amount of hard drive space used and I think it's letter is grey.

When right clicking on the drive it did give me the option to format it and most of the files I wanted were copied off the hard drive...maybe I should try to format the drive to bring it back to life?
Hanks for the programs you suggested are they freeware?
 
#13 ·
The drive has too many bad sectors to be used again. It has failed. Doing a full format not a Quick format, will mark the bad sectors, but if there are too many, it will just fail. If you have had it for less then 3 years you can send it back to WD and they will send you a refurbished one in return.
We try to recommend only freeware, But GetDataBack is free to download and will scan for free and tell you what if anything it can recover, but you need to pay for it to recover your files
 
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#14 ·
Thanks Spunk.Funk.

I'm hoping that the faulty HD is still under guarantee. Once I get the serial number I can look it up and check on the internet.

At the moment I am backing up files from the good partition of this HD. I have about 1.5 TB
to backup over usb 2.0 to a portable 2 TB hard drive so it's slow going. I hope I don't wear out the portable HD.
 
#15 ·
No, you won't wear out the usb portable drive by copying files to it. drives are tested for 50,000 hrs. continuous at the factory. You'd have to copy 1.5TB Back to back nonstop for about 5 yrs. assuming each copy took 24 hrs. or less before any degradation of that drive would occur.

hope the copy goes well. :thumb:

BBJ
 
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