Forum Thread

File Record Segments are Unreadable? Disk failure?

o2_intake 393 69 February 8, 2014 at 11:35 PM
Out of nowhere my computer started to lag and freeze.

I found out seemed like it only did it when using my 2nd hard drive and when I did a chkdsk, it found lots of "File Record Segments are Unreadable" and deleted lots of corrupted and orphaned file records.

It seems like my hard drive is failing, it is still running the chkdsk but if it finishes and loads up windows, is it better to keep the computer on or shut it down to save the files. I don't have external hard drive at the moment to back up the files. Will I have more of a chance to prevent complete disk failure leaving the computer on until tomorrow or shuting down and turning on tomorrow.

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#2
Stop using it till you can get a plan of what's on it, is it important, and where is it going to go to back it up. You said it's you second hard drive, so unplugging to shouldn't be a problem unless your OS is on it.

If the data is irreplaceable, stop right now.
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#3
Quote from sd444 View Post :
Stop using it till you can get a plan of what's on it, is it important, and where is it going to go to back it up. You said it's you second hard drive, so unplugging to shouldn't be a problem unless your OS is on it.

If the data is irreplaceable, stop right now.


At the end of the chkdsk, it hung up on "usn journal verification complete" and didn't load to windows.

I just shut down computer and pulled out hard drive.

How would I go about transferring the data after then? Or even check if the data is still retrievable?

1TB of data... no warning signs of disk failure too. =(
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#4
It's likely still fine.
  1. Where is your backup to avoid this? (Sorry, you knew that was coming.)
  2. Go buy something to unload potentially 1TB of data to. I would suggest a 2TB or larger external drive i.e. the data you have and room to expand.
  3. There are quite a few programs but most I'm family with will be CLI/text and/or linux based. You may want to wait for people who have used GUI recover programs.

http://www.cgsecurity.org/wiki/TestDisk
DDrescue
https://help.ubuntu.com/community/DataRecovery
or
http://www.hiren.info/pages/bootcd
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#5
Quote from o2_intake View Post :
Out of nowhere my computer started to lag and freeze.

I found out seemed like it only did it when using my 2nd hard drive and when I did a chkdsk, it found lots of "File Record Segments are Unreadable" and deleted lots of corrupted and orphaned file records.

It seems like my hard drive is failing, it is still running the chkdsk but if it finishes and loads up windows, is it better to keep the computer on or shut it down to save the files. I don't have external hard drive at the moment to back up the files. Will I have more of a chance to prevent complete disk failure leaving the computer on until tomorrow or shuting down and turning on tomorrow.
As mentioned, you have to stop running it RIGHT NOW.
DO not turn it back on until you have a big enough hard drive to save all the data.
Once you have the backup drive connected, turn your PC on and start copying the data from the 2nd drive as well as you OS drive.
You mentioned that it went bad on you without warning. Lagging and freezing, IS the warning sign of the hard drive dying. It will be dead shortly, so take advantage of the little time it has left, copying your data.
If one of the drives fails completely before giving up all its data, you still have other recourses to get the rest.
SD444 may be able to point out the best one to use, but I'll mention what I use that works like a charm.
It's a bootable DVD that allows me to run Linux without using my hard drives, so all the HD's have zero stress. Once you've booted up into the "environment', you will surely find that your data is even more accessible than it was when running Windows and you should be able to finish copying all your data, before the drives die.... I hope.
I should have mentioned that my DVD is Ubuntu. I don't think it matters much which Linux version you use, as long as it has the option to run live (not using the hard drives) and you'll be all set.
Other members can give you links to the websites that offer the ISO downloads to the correct Linux system.
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#6
Quote from RockySosua View Post :
As mentioned, you have to stop running it RIGHT NOW.
DO not turn it back on until you have a big enough hard drive to save all the data.
Once you have the backup drive connected, turn your PC on and start copying the data from the 2nd drive as well as you OS drive.
You mentioned that it went bad on you without warning. Lagging and freezing, IS the warning sign of the hard drive dying. It will be dead shortly, so take advantage of the little time it has left, copying your data.
If one of the drives fails completely before giving up all its data, you still have other recourses to get the rest.
SD444 may be able to point out the best one to use, but I'll mention what I use that works like a charm.
It's a bootable DVD that allows me to run Linux without using my hard drives, so all the HD's have zero stress. Once you've booted up into the "environment', you will surely find that your data is even more accessible than it was when running Windows and you should be able to finish copying all your data, before the drives die.... I hope.
I should have mentioned that my DVD is Ubuntu. I don't think it matters much which Linux version you use, as long as it has the option to run live (not using the hard drives) and you'll be all set.
Other members can give you links to the websites that offer the ISO downloads to the correct Linux system.

I used a LIVECD to run ubuntu and it says that it can't mount the drive. It sees that the drive, just can't mount it and won't show up.

Any other ideas on how to transfer files?
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#7
GNU ddrescue [gnu.org] can recover files from drives that won't mount. The learning curve is steep, but it is your best shot. Here is a quick tutorial [blogspot.com], but you may want to google and read around a bit as well.
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#8
Quote from hbarnwheeler View Post :
GNU ddrescue [gnu.org] can recover files from drives that won't mount. The learning curve is steep, but it is your best shot. Here is a quick tutorial [blogspot.com], but you may want to google and read around a bit as well.

I found an external hard drive to use as the target drive but will using that overwrite the files that are already on there? So do I need a totally blank external hard drive?
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#9
Quote from o2_intake View Post :
I used a LIVECD to run ubuntu and it says that it can't mount the drive. It sees that the drive, just can't mount it and won't show up.

Any other ideas on how to transfer files?
Are you still able to boot into Windows? If so, boot into Safe Mode to keep the stress down while you copy your data.
If yo can't boot into Windows and the Live Linux disc can't help, then I must defer this to the recovery experts.
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#10
Quote from RockySosua View Post :
Are you still able to boot into Windows? If so, boot into Safe Mode to keep the stress down while you copy your data.
If yo can't boot into Windows and the Live Linux disc can't help, then I must defer this to the recovery experts.
I'm able to load onto windows but I can't open the hard drive, the computer freezes so I'm unable to open any files on that hard drive, but I am able to open files on other hard drives.
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#11
Quote from o2_intake View Post :
I found an external hard drive to use as the target drive but will using that overwrite the files that are already on there? So do I need a totally blank external hard drive?
If I remember correctly, you can use ddrescue to create an img file, in which case it shouldn't overwrite, but I can't say for sure. The guy in this tutorial [youtube.com] is creating an img file, but it is worth watching to see how he uses dmesg to determine the /dev path for a drive that won't mount.
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#12
A program I've used very successfully in the past to recover files from drives that won't boot/mount is called MiniTools Power Data Recovery. They have both a Windows version and a bootable ISO - I almost always use the bootable ISO but since you can load Windows you should give it a try. There is a free version that will let you recover up to to 1GB of data, after that you have to pay for the license, which I think is $60.00. The software works very well but takes hours to scan the disk and create a virtual file system from which you can recovery your data. Obviously 1 GB is insufficient but in your situation it's easy enough for you to download the Windows version and see if it will find and mount your disk before you commit to buying the software. I've used a few other file recovery software programs, both free and paid, and none of them worked as well for me as this one.

http://www.powerdatarecovery.com/
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#13
Quote from o2_intake View Post :
I'm able to load onto windows but I can't open the hard drive, the computer freezes so I'm unable to open any files on that hard drive, but I am able to open files on other hard drives.
What about in Safe Mode? (tap F8 at bootup)
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#14
Quote from o2_intake View Post :
I used a LIVECD to run ubuntu and it says that it can't mount the drive. It sees that the drive, just can't mount it and won't show up.

Any other ideas on how to transfer files?
what error message do you get? It might be something stupid like you're in the directory you're trying to mount to.
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#15
Quote from o2_intake View Post :
I used a LIVECD to run ubuntu and it says that it can't mount the drive. It sees that the drive, just can't mount it and won't show up.

Any other ideas on how to transfer files?
No worries. It can't mount it because something is screwed up. It could be a simple issues fixed in windows safe mode, but if the data is important, why risk it?

**** Warning ******* Do not assume sda and sdb are correct; you can't undo dd commands.

http://keystoneisit.blogspot.com/...-with.html

**** Warning ******* Do not assume sda and sdb are correct; you can't undo dd commands.

Get a beer, because this will take a while. Following that will kill all data on target external drive i.e. everything is mirrored.

http://www.forensicswiki.org/wiki/Ddrescue

Quote from o2_intake View Post :
I found an external hard drive to use as the target drive but will using that overwrite the files that are already on there? So do I need a totally blank external hard drive?
External needs 1TB of free space. **** using dd without specifying an image file will kill existing data on the target *****
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