Hard Disk Error Management and Recovery

Sometimes you don't realize that it is normal for a hard disk to face errors during reading, as part of its regular operation. As hard disks are pushed to the limits of technology , with tracks and sectors spaced closer together, weaker signals used to prevent interference and faster spin rates produced by the spindle motor the chances of an error happening while reading the disk go up noticeably. In fact, the state of technology has advanced to the point where it is not practical to even try to avoid them.

Having actual errors appear to you while using the hard disk is intolerable, since you count on your disk reproducing the data you store on it reliably for a period of years. Hard disk manufacturers know how important this is and so incorporate special techniques that allow them to detect and correct hard disk errors. This allows them to make faster, higher-capacity drives that seems to the user to be error-free. The more the technology for storing data is pushed, the more sophisticated the error correction protocols must be to maintain the same level of reliability.

Making a drive that actually produced read errors infrequently enough that error detection and correction wasn't necessary, would mean greatly reducing performance and capacity. This is sort of like touch-typing there's a school of thought that says "if you aren't making any mistakes at all, you're going too slow". If correcting mistakes is easy, as it is with a word-processor, it's better to type 100 words per minute and correct an error or two, than type 75 words per minute error-free. As long as the errors are detectable and correctable, and they don't occur too often, it's better to plan for them, and then tolerate and deal with them, than to be too conservative in order to eliminate them.

"Invalid Product Key" : A problem while Installing Windows XP

To install Windows on system, a user must activate it using the product key. After entering the product key while installing Windows if system reports it invalid, the possibility is that a wrong product key has been entered. But despite of the right key , there might be several reasons causing this behavior including hard drive damage. In case of hard drive damage, you need to replace it and restore lost data from backup. In case the backup fails to restore, hard drive recovery solutions come as rescue.

While trying to install Windows XP on your computer, when you try to enter the product key, you encounter the similar error displaying on screen:

“The CD Key which you entered is invalid. Please try again.”

You might also receive an error telling that the product key used is invalid.

Cause

The above error might be the outcome of below possible reasons:

1. Using an invalid product key

2. An antivirus program is scanning the computer

3. Windows XP installation CD is damaged

4. Hard disk is damaged

5. Incorrect system date in CMOS (Complementary Metal-Oxide Semiconductor) settings

6. Some extra drivers are installed that are interrupting the installation

Solution

You should follow these steps to solve the existing problem:

1. Make sure that the product key you are entering is correct. Try making use of keyboard number keys instead of numeric keypad

2. Disable antivirus software scan. You need to ensure that no antivirus software is turn in computer BIOS

3. Replace the Windows XP installation CD if damaged

4. Ensure that the hard disk is not damaged. If it is, replace the hard disk and restore lost data from backup. Contact hard drive recovery service professionals if no or invalid backup is available.

5. Verify CMOS settings for correct system date

6. To provide clean installation of Windows, restart Windows without the installed extra drivers

7. You can also try copying Windows XP installation files to hard drive using command prompt

Hard Drive Recovery

It is the dedicated help provided by recovery experts to recover lost data from physically crashed drives. Hard drive recovery software professionals undergo several sophisticated processes using advanced techniques in Clean Rooms in order to recover the lost data.

"Error: 0xc0000034" while Installing Windows Vista SP1 or SP2

A service pack is a collection of updates to a software delivered in the form of a single installable package. Many companies, such as Microsoft or Autodesk, release a service pack when the number of individual patches to a given program reaches a certain limit.

In order to resolve earlier bugs and provide new set of features, Microsoft provides its latest updates of Windows version as service packs. Windows Vista Service Pack 1 and Windows Vista Service Pack 2 are two service packs that come available with major hardware and software support updates. At times, when you try to install either of the service pack on your Windows Vista based system, the installation fails and gives error while you try to boot the system. Such situations might force you to reformat the hard drive and restoring the lost data from backup. In cases when backups prove inefficient to restore the lost information, you should use hard drive recovery software to completely recover the lost data.

As an example, you attempt to install Windows Vista SP1 or Windows Vista SP2. The setup runs successfully through Stage 1 and Stage 2. But at Stage 3, after the second reboot, system fails to start. You observe a black screen displaying the below error message:

“Error: 0xc0000034”

Solution

To fix this error, perform following steps:

1. Boot your system using Windows Vista recovery disc or DVD

2. Next, choose the language option when prompted for

3. Choose ‘Startup Repair’ option in ‘System Recovery’ options

4. The ‘Windows Vista Recovery Environment’ should prompt to restore the system to an earlier restore point. Click ‘Yes’ to automatically restore the system

5. If it doesn’t prompt any such option, you need to start ‘System Restore’ manually in System Recovery options. This will allow the system to get back to the state when system was actually working

6. If problem persists, you need to reformat the hard drive and reinstall Windows. Use your last clean backup to get all the data.

Sometimes, backup fails to restore data because it is corrupted, not updated or absent. Such situations require that you scan your hard drive using hard drive recovery software. Designed with powerful and safe hard drive scanning technology, these applications provide effective hard drive data recovery in all logical data loss cases. Moreover, they empower you with graphically rich user interface.

Stellar Phoenix Windows Data Recovery is the powerful Hard Drive Recovery application that is compatible with Windows 7 (currently in RC1), Vista, XP, 2003 and 2000. The application uses advanced searching procedures and provide Disk Imaging and Drive Cloning like features. It is a suitable product to be used with NTFS5, NTFS, VFAT and FAT32 file systems

Windows XP Setup Repeatedly Crashes - How to Solve this Issue

While Installing Windows XP , setup runs through several steps of installation. But if it finds hard drive in corrupted state, it prompts errors and won’t allow the installation to continue further. If hard drive is damaged, you might need to either reformat it or replace it. In such situations, it is required that you have an updated copy of significant data. However, if no backup is available or it exists in invalid state, you should use hard drive recovery software to recover it.

While trying to install or upgrade to Windows XP, you might observe following symptoms with its setup:

1. One can encounter the similar error message while setup:

“Setup is unable to perform the requested operation on the selected partition. This partition contains temporary Setup files that are required to complete the installation.”

2. You try to format the hard drive but it returns an error that the setup has performed some maintenance task on your hard drive and hence cannot continue

3. Your computer system freezes with CRC errors on screen.

Cause

Your hard drive is suffering from major physical or logical corruption issues. Windows XP setup shows aforementioned symptoms when it attempts to repair these errors.

Solution

You need to apply these methods in order to solve the existing issue:

1. You can continue running the Setup program and allow it to repair the hard drive itself. You can try out running it several times.

2. If Setup cannot fix hard drive corruption, you should use Recovery Console to run chkdsk /r command logical disk corruptions, if any. Reformat the hard drive if it could detect but cannot repair the hard drive and restore lost data from backup. Use hard drive recovery applications if you fail to restore from backup.

3. If chkdsk cannot detect the hard drive, the hard drive is physically damaged. Replace the hard drive and restore lost data using backup. Contact hard drive recovery service professional for assistance in case of backup concerns to extract the data from physically crashed drive.

Raw hard drive recovery

When you try to access data from your computer hard drive, you may encounter certain error messages and the drive is displayed as RAW. In such situations, your important files and data can not be accessed from the drive.

When your hard drive is shown as RAW, it might show you the following symptoms:

"Invalid media type reading drive." Error message

"Sector not found" error message while accessing any file.

"Disk is not formatted. Do you want to format it now?"

File names contains strange characters.

In such situations, you need to opt for RAW hard drive recovery. You can effectively achieve that with hard drive recovery software that is specifically designed to meet recovery requirements of different users.

These software are capable of extracting your lost, missing or inaccessible hard drive partitions/volumes and complete data. Hard drive recovery software is generally easy to use and enable you to have ‘Do It Yourself’ data recovery.

You should only choose hard drive recovery software that offers RAW hard drive recovery support. RAW data recovery is used on hard drive file system’s logical structure corruption that causes serious issues (even post correction like index correction by chkdsk) or when logical structure gets overwritten. The RAW recovery process is carried out as the typical file system information about each file as name, type, size, number of clusters (for large files), location and more. In case of corrupted directory structures and missing file information it is impossible to recover the original file and folder names as they are not available. So, the regular tools for data recovery do not work in this situation.

The scan method used by RAW data recovery incorporates sequential reading of all sectors on the drive using file signature search algorithm. Almost all file types have unique file header and at times footer signatures. It provides the great option of extracting the confined data that lies within the file header and footer.

Error 0x0000007B while Installing Windows Vista

When we try to install Windows Vista or upgrade it, there might be some errors that may prevent the process. In this situation, one of the typical reasons is that Windows Vista or Windows Vista setup fails to access the hard drive, probably due to hard drive damage. Thus, there must bean immediate replacement of hard drive and restore maximum data possible through backup. In case of any backup issues when you cannot get the required information, Hard Drive Recovery tools are available to recover it.

Following error could be faced, at the time of installing Windows Vista:

“Stop: 0x0000007B”

This error occurs when Windows Vista cannot access the hard drive that contains the startup files for Windows Vista.

Reason

You get 0x0000007B error in any of the possible situations:

• No compatible driver for the disk controller is located by Windows Vista
• Your hard drive cabling is damaged or not connected properly
• Your computer is affected by a boot sector virus
• Incompatible computer BIOS
• MBR (Master Boot Record) is being used by another program
• Hard drive is damaged

Solution

Following are the methods to resolve the problems:

• If you are attempting clean install of Windows Vista or trying to upgrade it, the problem is typically related to absent or incompatible driver, required to be provided. Download Windows Vista drivers and use Load Driver option of Windows Vista setup to install them
• Make sure that your hard drive and interface cables are healthy and properly connected
• Scan the computer for viruses
• If BIOS incompatibility is the issue, replace your motherboard
• Wait till the program using MBR completes its task
• If hard drive is damaged, replace it and restore from backup. Consult Hard Drive Data Recovery service technicians for their manual data recovery help, if you find that your backup cannot give required results or is currently unavailable. Hard Drive Recovery service includes all technical steps to recover data.

Stellar Information Systems Limited provides best and unmatched Hard Drive Recovery service. Its recovery solutions are available for all types of hard disks, involving SCSI, IDE, EIDE and SATA. The company has Class 100 Clean Rooms to offer secure Hard Drive Data Recovery. Stellar has rich experience and proven record in providing leading disk recovery service.

Problems Installing Windows on GPT Hard Drives

Computers with Extensible Firmware Interface (EFI) use GUID Partition Table (GPT) as the standard hard disk partitioning system. Intel proposes it as the replacement for the PC BIOS that uses Master Boot Record (MBR).In GPT partitioned disks, data that is important to platform operation is placed in partitions and not in hidden or unpartitioned sectors as done in MBR partitioned disks. Due to this and similar other factors, you sometimes observe issues, especially while installing a Windows operating system. To solve such issues, you might need to delete all hard disk partitions and opt for suitable partitioning scheme. This deletes all data and thus to restore information, you require using your recent data backup that should be complete and valid to restore data. However, if data backup is not updated, is corrupt or absent, you can use hard drive recovery software to scan and recover your data.

As a practical instance, when you attempt to install Windows Server 2003, a x64-based Windows Server 2003 version or Windows XP, you might receive the below error message:

“Setup cannot install to the selected partition.
You can only install to GPT disks on IA-64 machines and MBR disks on X-86 machines.
You can only upgrade installations on GPT disks on IA-64 machines and MBR disks on X-86 machines.
To go back to the previous screen press ENTER”

This error message occurs if these both conditions are true:

Ø An operating system is already installed on hard drive or it had an operating system, which has now been removed.

Ø Hard drive is GPT formatted

You fail to install required operating systems on GPT hard drives because of following reasons:

Ø On GPT hard drives, you can only set up Windows Server 2003 on systems that are Itanium-based.

Ø You can’t set up Windows x64 and Windows 32-bit operating systems on GPT based hard drives.

You need to convert your GPT hard drive to a MBR hard drive. You can use Disk Management or Diskpart command for it, if an operating system is already installed. You can also delete all existing hard drive partitions while running Setup program and opting for the option to convert the partitioning scheme. In Windows Server 2003-based systems, it must have Windows Server 2003 Service Pack 1 installed. After this, you can restore lost information from backup. If backup produces errors or has not been taken, you can use hard drive recovery applications.