Corrupted Inconsistent Hard Disk

prunesquallor

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Dec 16, 2003
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Hello,

Running Windows XP Home here.

I recently defragged one of my hard disks using the PerfectDisk program and the defragging process went through without a hitch.

However, after defragging, all the files on my D:\ drive were corrupted and could no longer be utilized. I could not gain access to folders and etc. I restarted my pc and the chkdsk ran through, which I fear may be a mistake. It supposedly corrected everything (and there was a lot... index errors on many files and recovered orphan for everything), but now all my files information is jumbled together.

I play an MP3 and I get the track switching every three seconds. Many files are just big jumbles of files stitched together. Almost nothing is in its original form.

Is there anyway to recover the data and restore it?
 

Toejam31

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Dec 31, 2007
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You may not be able to recover <i>all</i> the files, but a program like <A HREF="http://www.ontrack.com/easyrecoverydatarecovery/" target="_new">EasyRecovery DataRecovery</A> might be able to retrieve most of them.

There was probably something wrong with the file system or partition table before PerfectDisk was used, or the hard drive might have one or more bad sectors. I prefer to run CHKDSK on a partition before defragging, just to be safe.

Other recovery programs and useful software:

<A HREF="http://www.file-rescue.com/" target="_new">File Rescue Plus</A>

<A HREF="http://www.runtime.org/gdb.htm" target="_new">GetDataBack - Data Recovery for FAT V2.22</A>

<A HREF="http://www.runtime.org/gdb.htm" target="_new">GetDataBack - Data Recovery for NTFS V2.22</A>

<A HREF="http://www.bitmart.net/r2k.shtml" target="_new">Restorer2000</A>

<A HREF="http://www.dtidata.com/" target="_new">DTI Data Recovery</A>

<A HREF="http://www.dtidata.com/products_ff_undelete.asp" target="_new">Fast File Undelete</A>

<A HREF="http://www.quantumsoft.co.uk/undelete.stm" target="_new">QuantumSoft Undelete</A>

<A HREF="http://www.filerecover.com/" target="_new">File Recover</A>

<A HREF="http://www.r-tt.com/" target="_new">R-Tools Technology</A>

<A HREF="http://www.winternals.com/products/repairandrecovery/filerestore.asp" target="_new">Winternals FileRestore</A>

<A HREF="http://www.winternals.com/products/repairandrecovery/" target="_new">Disk Commander</A>

<A HREF="http://www.cgsecurity.org//index.html?testdisk.html" target="_new">TestDisk</A>

<A HREF="http://www.dfsee.com/" target="_new">DFSee</A>

<A HREF="http://kristenonline.com/lain/cih/mrecintro.htm" target="_new">MRECOVER</A>

<A HREF="http://www.simtel.net/product.php?url_fb_product_page=57588" target="_new">Back2Life 2.2</A>

<A HREF="http://www.highergroundsoftware.com/6.html" target="_new">The Hard Drive Mechanic Gold Special Edition</A>

<A HREF="http://www.lc-tech.com/filerecovery.htm" target="_new">FILERECOVERY</A>

<A HREF="http://www.executive.com/consumer/undelete/undelete.asp" target="_new">Executive Software Undelete</A>

<A HREF="http://www.quetek.com/prod02.htm" target="_new">File Scavenger</A>

<A HREF="http://www.uneraser.com/undelete.htm" target="_new">Active@ UNERASER - DATA Recovery</A>

<A HREF="http://hccweb1.bai.ne.jp/~hcj58401/" target="_new">Restoration</A>


Toey

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prunesquallor

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Dec 16, 2003
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Yes, that sounds like it. I was wonder if there is anyway to correct the file system, partition table, or bad sectors? This is not the first time this has happened. A few weeks back, I switched operating systems on my c:\ drive (the drive with the problems of this thread is d:\_ and when I rebooted the system, the same thing occurred with D:\. I formatted everything and started anew.

Now the problem has happened again as a result of defrag. Also, I sometimes get notification that a few folders are corrupt out of the blue. CHKDSK actually is able to fix and repair those few instances fine though.

I run Active SMART disk monitoring, and the drive registers as being in fine condition. It is a Western Digital 180 gig with 8mb cache. Hrm. I have formatted the drive twice and that didn't seem to address the issue. Is there anything I can do?
 

Toejam31

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Dec 31, 2007
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To correct this, you must discover the source of the problem. This means you must looks at several different aspects of the situation to determine the reason the errors are occurring.

Possibilities:

1.) Incorrectly written partition tables

This can depend on the method used to create the partitions. Was the partitioning done with a Win9x boot disk, the Windows CD, or with disk overlay software from the drive manufacturer? Disk overlay software is notorious for creating partition tables that cause incompatibilities with other kinds of software, such as defragmenting and imaging software. Either the software won't launch and run correctly, or if the programs do manage to run, data corruption can be the end result.

2.) Bad sectors

Bad sectors can be either in the file system, or due to physical damage to the hard drive, or both. In any case, performing a low level format with software from the drive manufacturer can mark bad sectors on the hard drive, and is something I recommend all users do when first installing a new drive. Rough handling during shipping can cause problems that are initially unnoticed when a drive is first partitioned and formatted that don't show up until data is added, and maintenance programs are run. A standard LLF, done before partitioning, can remove a great of the unusual problems users may experience when a drive is first installed.

Note: An error in the file system is almost always repaired with a standard format, unless the hard drive is actually damaged, and this was the source of the problem in the first place.

3.) Cabling

A twisted, damaged cable, or one with damaged connectors can cause data corruption and worse. Always use new cables when installing a drive, and resist the urge to plug and unplug those same connectors repeatedly, as they are easily damaged. Don't fold them any more than necessary, and never lengthwise.

4.) Power

An inadequate or failing power supply ... or one that is not connected to a source with good power conditioning can cause more problems than anything else, and is the most common reason for computer problems involving data corruption ... even more so than heat, dirt, and user error.

Plugging a PSU into a wall socket, or a surge protector is definitely running a risk. User may be unaware that the voltage on a standard line run to a wall socket can fluctuate thousands of times in a single day, and that can damage or overheat a PSU, which in turn can damage internal components; not to mention cause corruption to the file system and a loss and/or corruption of data.

5. Mainboard

Mainboards, even new ones, are not always stable. Some boards are simply created better than others, especially in regards to the layout, electrical wiring, and chipset. Many boards in recent years have shipped with faulty capacitors, which can cause electrical issues that can be difficult to diagnose remotely, such problems feeding steady clean power to an AGP port, or other devices, such as hard drives ... also resulting in data corruption. Some boards can also be early revisions, and have issues running from faulty IDE controllers to incompatibilities and bugs in the BIOS.

Flashing the BIOS to the latest version, and having the board checked out at a local shop for electrical issues, such as problems maintaining a correct voltage pressure to the main rails may be a good idea if data corruption happens regularly, especially with a new system.

6. Heat

While this may not be applicable in your situtation, an overheating processor, or an inadequate cooling solution can certainly cause problems involving data corruption.

That's my two cents.

Toey

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