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Disk crash data recovery

At first my system was slow, then I got endless error messages on delayed write. When I tried to run scandisk it failed several times, but eventualy when I rebooted in went into scandisk automaticaly. Scandisk reported many bad sectory, bad file descriptors, etc. Eventualy it hung, and when I tried to reboot, the system went into a reboot loop. I tried connecting an USB-IDE convertor to the disk and reading the files, but it hangs my computer. virus infactions and data crass pleas tell me back up

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  • sagar shinde Feb 17, 2008

    Problem: disk crash data recovery
    posted by sagar shinde on 02/17/2008

    At first my system was slow, then I got endless error messages on delayed write. When I tried to run scandisk it failed several times, but eventualy when I rebooted in went into scandisk automaticaly. Scandisk reported many bad sectory, bad file descriptors, etc. Eventualy it hung, and when I tried to reboot, the system went into a reboot loop.

    I tried connecting an USB-IDE convertor to the disk and reading the files, but it hangs my computer.
    virus infactions and data crass pleas tell me back up

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Its time for a data recovery operation. you'll want to find someone nearby, as this is a 50/50 effort at best.

got backup?

Posted on Feb 17, 2008

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I was restoring from the Acer recovery disk that I created when my process crashed before it completed. Now it won't boot up at all...HELP!


Your best bet is to reinstall the operating system. I couldn't count the number of times that the Recovery Discs created by users fail, it's very common. The only recovery that works a high percentage of the time is when the manufacturer puts a recovery partition on your hard drive.

You can try your Recovery Disc again, but if it produces the same results, just reinstall your operating system fresh. It shouldn't matter because either way you will lose your data.

May 13, 2012 | Acer Aspire T160-US321H (AST160-U-S321H)...

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Hard Disk Data Recovery


Definition of Hard Disk: Hard Drive is a storage device where you can store any types of data and file. Hard Drive is available as external and internal device. We know PC storage device as internal system Hard Disk. When you save data or install programs on your computer, the information is typically written to your Hard Disk. The Hard Disk is a spindle of magnetic disks, called platters, that record and store information. There are several interface standards for passing data between a Hard Disk and a computer. The most common are IDE and SCSI. Hard Disk is made of one or more aluminium or glass platters, coated with a ferromagnetic material. Most Hard Disks are found as Parallel ATA (PATA), Serial ATA (SATA) or SCSI device.

Difference with Floppy Drive:
The term hard is used to distinguish it from a soft, or floppy, disk. Hard Disks hold more data and also faster than floppy disks. As an example a Hard Disk can store anywhere from 10 to more than 100 gigabytes, where most floppies have a maximum storage capacity of 1.4 megabytes. Floppy is more risky device than Hard Disk for losing data.
Problem with Hard Disk:

Most common problems of Hard Disk which may arise anytime are Booting problem, OS Installation problem, Hard drive crashing and another Hard Disk not showing original space or not showing partition etc. But in every case the risk is loss of data. In some of cases formatting and reloading of Operating System can recover your Hard drive and make it useful but formatting can recover a blank Hard Disk only without data. But you have to recover Hard Disk with data, so formatting is not possible.


Data Recovery:

Data recovery is the process of retrieving back data from the damaged media. The damage of storage media can be physical damage and logical damage. The data is retrieved back by recovery experts after determining the type of the damage caused to the storage media. Most of cases data recovery is important and formatting is not possible there. So that I need to choose another way for solution of this type of problems of Hard Disk. The first and secure way to recover a Hard Disk is using data recovery software.


Recover Data from crashed Hard Disk: Power surges, Software Corruption or Malfunction, Hardware or system failure, Natural calamities, User errors may crash your Hard Drive. Data recovery software helps to retrieve or recover the data from the crashed hard Drive. Data recovery software gives an easy and Graphical User Interface with less difficulty so that the data can be recovered easily. The recovery software helps to recover the data and restore them on a second Hard Disk, the Hard Disk being connected to the computer and recognized by the BIOS, the recovered data can be stored on a safe location on the second disk.


Logical data recovery: In a data loss situation when the Hard Drive is perfectly fine and the BIOS recognizes the Hard Drive but reports a read error, logical data recovery technique is very helpful. Here the files that are damaged or corrupted by any user error or virus attack are rebuilt rather than repairing the Hard Drive.


Fragmentation: When the FAT entry is lost during accidental file deletion, formatting or partition deletion that particular block of Hard Drive becomes inaccessible. Some data recovery software makes an attempt to rebuild the files without a FAT entry. This technique is very efficient if the file size is smaller than the clusters size. But it is inefficient in recovery the larger files.


Data Recovery from deleted partition: Partition is allocation of memory in different sections. Each partition will be like separate disk drives. Partition is very use full when the user is using operating systems more than one. Usually after formatting the disk it may not be able to recognize a partition because of accidental deletion of the partition table or by virus infection. The partition is not actually deleted; it can be recovered by using recovery tools and copy the data present in the partition to the required destination. Formatting the drive erases a large amount of data present on it, but not all the data. The recovery of the data depends on the fragmentation of the file system as the parts of files are being placed on different places in the drive. The data recovery software will assume that files were not fragmented and stored in continuous clusters. If the partition was formatted using different file system, then recovery process will be very complicated.


Another Data recovery process: If you don't have any data recovery software you can try another process to recover data. Attach the Hard Drive with another system in slave or second SATA.If detect the drive then boot to the first Hard Drive and use the bad Hard Drive as secondary. Then you can copy the data from the second drive to first drive easily. Here have another process to recover data from a crashed Hard Disk. But it is so risky, and should not try to do this for an inexpert person. First pack the Hard Disk in a bag properly where moisture can't attack. Now freeze it upto get chill. After freezing quickly attach with a system in secondary, and copy the data within the Drive will come in room temperature.

So the most secure process to recover data from a Hard Disk is to use data recovery software. It is available in market.

on Mar 18, 2011 | Computers & Internet

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Hard Drive Basics and Beyond Part2


The list is as follows

As of 2010, virtually all of the world's Hard Disk Drives are manufactured by just five large companies: Seagate, Western Digital, Hitachi, Samsung, and Toshiba.

Now to the Fun Stuff

Whether we are building our own computer, upgrading our existing PC or just adding an extra hard drive to increase storage, we usually rely entirely on Windows for maintenance and care of this new or old hard drive. That's not always as efficient or good as it sounds. If you have ever used the Windows defragment software to defrag your hard drive, you know just how tedious and long this process is. The Defrag program itself is not very intuitive and has very few adjustable parameters.

Defragmenting is good!

It is usually a good idea to download a non Windows defragmenter with more user friendly options such as quick defrag, data map (for seeing what chunks of data are being moved) or selectable defragment options which allow you to choose what to defragment. What you select as your program of choice is entirely up to you. Be advised, however. Microsoft has been
steadily working you away from having any control over how you
defragment your drive.

With each upgrade and revision of Windows, you see less and less of what is actually going on with your hard drive, which places all of your trust on a company most people know very little about.

If you are like me, your hardware is important to you, and you want to know more, not less about what may be going wrong with your equipment. Why defrag doesn't automatically run when your hard drive slows down due to severe fragmentation is a mystery I have never solved.
Your antivirus will stop a program from destroying data, your Desktop has an automatic cleanup wizard, and even your Email asks if you want to compact messages to save space. So why does Windows allow your hard drive to fragment itself to such a state that data loss can occur simply
because Windows can no longer remember where your files are stored?

Well, those problems won't be solved by wishful thinking, we have to take control and do this ourselves. Some good defragment programs will have a scheduler, and you will want to set this up to run at a time when you will not be busy on your PC. Remember to disable screensavers as this will slow down your defrag speed. Some antiviruses can do this as well, especially if they just happen to update you while the defragmenter is running. Essentially Any program that writes data to your hard drive while you are trying to defrag it will slow down your completion time, so turn it off.

Scandisk or Checkdisk

CHKDSK (short for Checkdisk) is a command on computers running DOS, OS/2 and Microsoft Windows operating systems that displays the file system integrity status of hard disks and floppy disk and can fix logical file system errors. It is similar to the fsck command in Unix.
On computers running NT-based versions of Windows, CHKDSK can also check the disk surface for physical errors or bad sectors, (an area of the disk that may have had a momentary head
crash) a task previously done by SCANDISK (for older versions of Windows such as, 95,98,ME).

This version of CHKDSK can also handle some physical errors and recover data that is still readable.

When do you run scandisk?

1. When data loss has occurred, typically when Windows cannot find a file.
2. When your computer can actually find the file, but takes forever getting there.
3. When your PC is using a hibernation file as well as system restore and cant restore properly.
4. When your PC continually starts up in safe mode.
5. When you get an error stating that Windows must shut down to prevent data loss.
6. After a virus is detected and cleaned.

Windows does not perform this check automatically or when an error occurs. In some instances such as several hard starts or crashes, Windows will offer to run the scandisk or start itself, but by then it is usually too late to actually do any good. While it may make you feel better that the Disk check program has started on it's own, and it appears that Windows is trying to protect you from data loss, the actual fact is that this is a last ditch effort for Windows to recover itself, not your data, but it's own startup files. If your data gets saved in the process, so much the better.

Alternately you can run Scandisk-Checkdisk in the Shell mode or dos type box.
CHKDSK can be run from the Windows Shell, the Windows Command Prompt or the Windows Recovery Console. One option for CHKDSK is the use of the Command-line/R parameter, which allows the program to repair damage it finds on the hard drive.
Conducting a CHKDSK can take some time, especially if using the /R parameter, and the results are often not visible, for various reasons. The results of a CHKDSK conducted on restart using Windows 2000 or later operating systems are written to the Application Log, with a "Source"
name of Wininit or Winlogon and can be viewed with the Event Viewer.

This method is usually your last line of defense and will only be offered in extreme situations where a boot failure has occurred.

A word on SFC (System File Checker)

Have you ever had a program fail to execute, then follow with a DLL error of some type? This is a handy way to restore that corrupt, missing or virus altered DLL, and it can be started in Windows.
By default, Windows File Protection is always enabled and allows Windows digitally signed files to replace existing files safely. Currently, signed files are distributed through:

# Windows Service Packs
# Hotfix distributions
# Operating system upgrades
# Windows Update
# Windows Device Manager

If you introduce a file replacement in any other way, Windows File protection will overwrite your file! An important part of Windows File Protection is the command line utility:

System File Checker (sfc.exe)

Use this utility when you suspect there may be a problem with a Windows XP system file. To do this simply go to the Run box on the Start Menu and type in: sfc /scannow.

on Mar 16, 2010 | Computers & Internet

1 Answer

Dell Dimension 2400 machines with disk read errors - won't boot!


A clicking sound from the hard drive is the one sound you never want to hear. It means the drive has failed. If you need the data, you have no choice but to send it out for data recovery.
On the second one, I would suspect a hardware problem, but in this case I would try to run the program "spinrite." If the computer can't detect the disk, I would install this disk as a second disk in another system. See if the other system can read it. If it, too, cannot detect it, then you've got another bad disk.

Oct 31, 2011 | Dell Dimension 2400 PC Desktop

3 Answers

My pc is very slow


-Can you provide more information about your issue?
-Are you using Windows XP or Windows Vista or Windows Seven?

When you say slow, is it slow when you are on the internet or slow when accessing or the computer or generally slow like everything is running slow?

Mar 25, 2011 | Computers & Internet

1 Answer

ERROR 1002


This error can occur during a system recovery, and choosing the backup option to an external hard drive. The recovery might stop responding, and an Error 1002 message displays.To resolve the error, follow these steps:
  1. After the error message displays, turn off the computer.
  2. Disconnect the external hard disk drive.The backup is still useable.
  3. To continue the system recovery, restart the computer.
  4. Press F11 repeatedly at startup.
  5. Select Advanced Options , and then select System Recovery .
  6. When given the choice, choose to continue without a backup.
  7. After system recovery is complete, restore files from the external hard disk drive.

Jul 04, 2010 | Dell Dimension 8200 PC Desktop

4 Answers

I power up the computer and get ''operating system not found'' on the screen.


The operating system not found error message is one commonly seen by techs and non-technical people alike. If you run into one, it may not be a problem at all. Here's an example:

If you're installing a new operating system to a hard drive or partition, or have just installed a new mother board, chances are you aren't alone. Most of the occurrences of the operating system not found error occur during these processes. In many cases, this is simply BIOS related, and can be changed very quickly (and remedied) during the Boot process. There are a wide variety of occurrences of this error, so if you have recently been "tinkering" or have installed a new operating system, take heart, there are many computer forums on the subject which may be able to point you to an answer.

Another reason why you may get an operating system not found message, is due to a damaged or incorrectly formatted partition. If your computer can't read the partition, then all data stored within that partition cannot be found. This includes your operating system. To solve the problem, you may need to look into partition recovery.

There are instances, however, when the operating system not found error occurs because of file system error, or worse, hard disk drive failure. If this is the case, you may require professional hard disk drive recovery, especially if you were not changing the system details recently, and were just working as normal.
When To Suspect Hard Disk Drive Failure Certainly, there is an explanation for everything, and the operating system not found error can be explained very easily. First, check your floppy disk drive. Is there a disk in it? In cases where this occurs, simply removing the floppy disk will likely solve your problem. Your computer may have been looking for an operating system on the floppy, and as a result, you were handed an error message. Removing the floppy disk should fix your issue.

If there is no floppy disk in your drive, it may be time to check the boot sequence. You can do this in your BIOS. First of all, does your hard drive get detected as the primary hard drive? If it does not, your hard drive may have in fact failed. If it does, move to the Boot Sequence section of the BIOS. If your hard drive does not show up within the first three boot devices, you probably have a problem. Adjust your BIOS accordingly.

Can't Find Hard Disk Drive Either

If you've done these preliminary checks, and are still receiving the operating system not found error, you could be facing hard disk drive failure. If this is the case, remember : DO NOT PANIC. 99 times out of 100, your hard drive's data can be recovered by a professional firm. So rest easy. Then try this test if you have another computer system available.

First, disconnect your hard disk drive from your system, and connect it to a system you know works as the slave drive.

Second, boot up the system and go into Windows explorer. If you can see the drive, you may not have a problem at all, or have one which can be fixed with simple data recovery software tools (Do a search on Google for data recovery software tools for a selection).

If, on the other hand, you cannot see your drive, you may want to consult a professional hard disk drive recovery shop like Hard Disk Recovery Services. Contact us here for a hard disk drive recovery quote, and we will usually be able to diagnose your problem over the phon

Jun 02, 2010 | Computers & Internet

3 Answers

Pc to slow


for this you need a system recovery discs or boot discs just insert them and follow the instructions

Apr 19, 2010 | E-Machines eMachines Desktop PC

2 Answers

Maxtor One Touch III


Download and run maxtor powermax, when you run the program it will idenify your hard drives, select your one touch and run the recertify, this will not erase anything but will run a complete diagnostic and attempt recovery of data to recertify as good. If the drive fails I have recovery software I can e-mail you.

Mar 14, 2008 | Computers & Internet

2 Answers

PCV-W20 Partition sizes


Have yout tried to recover without any partition defined? Try to execute with your hard drive clean.

Dec 17, 2007 | Sony VAIO PCV-W20 PC Desktop

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