Though the advance computer systems, such as Mac, UNIX etc are robust in their design and storage structure, still situations leading to data loss are almost inevitable. This is the reason that various operating systems have inbuilt commands that facilitate certain amount of data security or preventive measures to save your data prior to a possible damage to the storage media.
The 'dd' command is such an example. The command can be used to make an exact image of the data from the dying hard drive and can be restored later on. However, under unfortunate incidents, the disk image refused to be mounted and it seems as if all your data is lost. These are the extreme conditions, where you have to think over technologies like Mac hard drive recovery or Mac recovery software.
Facts about 'dd' command:
This is a common piece of UNIX command with the purpose of copying and converting raw data. 'dd' is usually used to copy a specified number of bytes or blocks of data and similarly byte level conversion, such as EBCDIC to ASCII conversion. Though this command is used to backup the boot sector of a hard disk, still you can also use it to copy the entire partition or disk. 'dd' command copies the information about deleted and formatted data as it copies byte by byte, whereas the usual 'cp' command misses it. Moreover, this command can make a copy of the specified data irrespective of the data type or the file system.
The Problem: your data in the Mac OS X based volume is inaccessible and you have sensed some problem with your hard drive. You accessed your drive through your UNIX OS and made an image of your data by using the 'dd' command. Later, when you try to mount the image and restore the data on your Mac OS X, it showed an error message and stuck. The error message read as:
“No mountable file systems”
As the data image is refused to be mounted, you cannot restore the your data, through the image, you had made by the 'dd' command.
Cause of the problem: The most likely reason is that the data image made by the command is corrupted.
Now, if you have taken backup of your data, then you can restore the same from the updated backup. In the absence of a valid backup, try using Mac recovery software.
The Mac recovery software are developed with advanced techniques to recover all your deleted, corrupted or inaccessible data from a troubled hard drive. You can easily use these software without any prior knowledge as they come with detailed instructions for each step.
Thursday, September 30, 2010
Monday, September 27, 2010
What to do if Ntfs.sys System File gets corrupted
Now a days , with modern technology , the NTFS file system formatted Windows XP operating system does not take too much time to boot. But what if, after waiting too long , your XP computer displays an error message that indicates absence or corruption of a vital system file, and your system refuses to boot after that, then what should be done? Well, don't panic. First of all, check if your backups are updated. And after that search for ways to perform windows hard drive recovery.
Here is the threatening message that may disappoint a user :
"Windows could not start because the following file is missing or corrupt: System32\Drivers\Ntfs.sys"
More often than not, this problem generally occurs when the user has converted his FAT formatted hard drive to an NTFS formatted hard drive. But, you need not panic.
A few suggestions to overcome the issue are:
• Use the startup disk or the Windows XP CD to restart the computer.
• On reaching the 'Welcome to Setup' screen, press key 'R' to repair using recovery console.
• Now you need to type the Windows installation number that needs to be accessed using the recovery console, before hitting 'enter'.
• When prompted to enter password, type it, before hitting 'enter'. Otherwise, in the absence of password, just hit 'enter'.
• Type the following in the command prompt before hitting 'enter' again (X refers to CD-ROM drive, and D refers to the boot partition where the problem is coming):
copy X:\i386\ntfs.sys D:\windows\system32\drivers
This done, your Windows XP system should work fine, unless some other problem has been causing this kind of problem.
Well, if the above methods are not working , then In such a situation, you will have to format the drive, and reinstall the OS. However, the data that is lost will have to be retrieved with the help of updated backup. But , in case you don’t have the backup, then you have a problem. Still there is no need to worry , unless you have hard drive recovery software. These are third party windows hard drive recovery tools that comprehensively recovery data from your hard drive.
Here is the threatening message that may disappoint a user :
"Windows could not start because the following file is missing or corrupt: System32\Drivers\Ntfs.sys"
More often than not, this problem generally occurs when the user has converted his FAT formatted hard drive to an NTFS formatted hard drive. But, you need not panic.
A few suggestions to overcome the issue are:
• Use the startup disk or the Windows XP CD to restart the computer.
• On reaching the 'Welcome to Setup' screen, press key 'R' to repair using recovery console.
• Now you need to type the Windows installation number that needs to be accessed using the recovery console, before hitting 'enter'.
• When prompted to enter password, type it, before hitting 'enter'. Otherwise, in the absence of password, just hit 'enter'.
• Type the following in the command prompt before hitting 'enter' again (X refers to CD-ROM drive, and D refers to the boot partition where the problem is coming):
copy X:\i386\ntfs.sys D:\windows\system32\drivers
This done, your Windows XP system should work fine, unless some other problem has been causing this kind of problem.
Well, if the above methods are not working , then In such a situation, you will have to format the drive, and reinstall the OS. However, the data that is lost will have to be retrieved with the help of updated backup. But , in case you don’t have the backup, then you have a problem. Still there is no need to worry , unless you have hard drive recovery software. These are third party windows hard drive recovery tools that comprehensively recovery data from your hard drive.
HDD recovery tool to overcome the System hive corruption in Windows 2000
In the Windows systems, the System hive is the place where the backup of the registries containing the keys, subkeys, and their values is stored. For each user profile, a separate system hive is created to keep the record of each and every activity. However, sometimes the System hive gets damaged due to several issues that can even make the system inaccessible. In such situations, you can use various system recovery methods. If these methods do not work, then this situation calls for a professional Windows hard drive recovery software to recover hard drive.
Consider a scenario in which you restart your Windows 2000 system and it fails to start. The following error message is displayed in this case:
“Windows could not start because the following file is missing or corrupt:\WINNT\SYSTEM32\CONFIG\SYSTEMced”
Note: The 'ced' letters displayed at the end of the error message is actually not part of the error. It is probably part of the previous screen, which was not overwritten when this error appeared.
In addition, you may get the following error message as well:
“System hive error”
Cause:
There could be the following causes for this problem:
•A PCI (Peripheral Computer Interconnect) controller card of Promise Technology, Inc. make is installed in your computer.
•The System hive in your system is either missing or damaged.
Resolution:
There could be the following resolutions for this startup problem:
•Removing the PCI controller: You should remove the PCI controller, then check the BIOS settings to see if the PCI controller is enabled on the motherboard. Restart the system.
•Restoring a backup of the System hive: You should use the Repair Console tool to restore the backup copy of the System hive. If your system does not have Repair Console, then you should run it from the Emergency Repair process.
•Reducing the System hive's size: At times, when too many resources are shared on the system the hive becomes too large and difficult to manage. In such cases, you should reduce the size of the System hive.
If the system is still not resolved, then you would need to use a third-party hard drive recovery utility to recover hard drive. Superb user interface along with the capability to recover data any damage are few of the benefits of these hard drive recovery tools.
The best hard drive recovery software that I would suggest you is Stellar Phoenix Windows Data Recovery that recovers hard drive from different types of storage media. Supporting hard drive recovery from NTFS, FAT, and exFAT file systems, this Windows hard drive recovery tool is compatible with Windows 7, Vista, Server 2003, XP, and 2000.
Consider a scenario in which you restart your Windows 2000 system and it fails to start. The following error message is displayed in this case:
“Windows could not start because the following file is missing or corrupt:\WINNT\SYSTEM32\CONFIG\SYSTEMced”
Note: The 'ced' letters displayed at the end of the error message is actually not part of the error. It is probably part of the previous screen, which was not overwritten when this error appeared.
In addition, you may get the following error message as well:
“System hive error”
Cause:
There could be the following causes for this problem:
•A PCI (Peripheral Computer Interconnect) controller card of Promise Technology, Inc. make is installed in your computer.
•The System hive in your system is either missing or damaged.
Resolution:
There could be the following resolutions for this startup problem:
•Removing the PCI controller: You should remove the PCI controller, then check the BIOS settings to see if the PCI controller is enabled on the motherboard. Restart the system.
•Restoring a backup of the System hive: You should use the Repair Console tool to restore the backup copy of the System hive. If your system does not have Repair Console, then you should run it from the Emergency Repair process.
•Reducing the System hive's size: At times, when too many resources are shared on the system the hive becomes too large and difficult to manage. In such cases, you should reduce the size of the System hive.
If the system is still not resolved, then you would need to use a third-party hard drive recovery utility to recover hard drive. Superb user interface along with the capability to recover data any damage are few of the benefits of these hard drive recovery tools.
The best hard drive recovery software that I would suggest you is Stellar Phoenix Windows Data Recovery that recovers hard drive from different types of storage media. Supporting hard drive recovery from NTFS, FAT, and exFAT file systems, this Windows hard drive recovery tool is compatible with Windows 7, Vista, Server 2003, XP, and 2000.
Saturday, September 18, 2010
Data recovery services to overcome hard disk failure
If your computer's hard disk suffers a physical damage, you might have to face serious data loss problems. In an event of physical damage, your computer may not boot or you may encounter an error message while starting or using your computer.
Hard drive failures are not rare and therefore, each and every computer user should prepare himself to combat such terrible situations. Since hard drive failures are not always predictable and lead to grave data inaccessibility problems, you must take regular backups of your vital data. Backups help a great deal when you come face-to-face with hard drive crash-like situations. However, if you encounter a hard drive failure and have no means to restore the lost data, you must acquire specialized data recovery services.
Hard drive recovery services in New Jersey are provided by many companies. Though, the place boasts of several reputed data recovery companies, you must do your own groundwork to find one which suits your requirements. Data recovery services in NJ can be attained in both the logical and physical damage cases, regardless of the make/model/interface of hard drives.
Acquiring professional services is considered the best way to deal a hard drive failure situation. Let's consider a scenario which not only presents a practical case of hard drive failure but reinforces the benefits associated with availing data recovery services. Imagine a situation, wherein, you start your Windows XP-based system and receive the following error message:
"Hard disk drive failure"
When you start your computer from a Windows 98 startup disk, and then try to execute Fdisk.exe program, you may receive the following error message:
"No fixed disk present"
Cause
•If the hard disk in question is not installed correctly
•If the hard disk is not configured properly in the BIOS
•Or if the hard disk is damaged
Resolution
For installation and configuration related issues of the hard drive, you have to contact your computer manufacturer. However, if you suspect damage and the error message persists even after observing the corrective steps, then contact hard drive recovery experts immediately. Recovery experts would ensure that you get back the lost or deleted data.
Stellar Data Recovery Inc has established an excellent reputation by delivering efficient and safe data recovery services New Jersey. Besides CLASS 100 Clean Rooms, the company boasts of a vast array of top-notch data recovery tools and a team of highly experienced technicians. Stellar's experts are proficient in carrying successful recoveries and adhere to strict data confidentiality norms.
Hard drive failures are not rare and therefore, each and every computer user should prepare himself to combat such terrible situations. Since hard drive failures are not always predictable and lead to grave data inaccessibility problems, you must take regular backups of your vital data. Backups help a great deal when you come face-to-face with hard drive crash-like situations. However, if you encounter a hard drive failure and have no means to restore the lost data, you must acquire specialized data recovery services.
Hard drive recovery services in New Jersey are provided by many companies. Though, the place boasts of several reputed data recovery companies, you must do your own groundwork to find one which suits your requirements. Data recovery services in NJ can be attained in both the logical and physical damage cases, regardless of the make/model/interface of hard drives.
Acquiring professional services is considered the best way to deal a hard drive failure situation. Let's consider a scenario which not only presents a practical case of hard drive failure but reinforces the benefits associated with availing data recovery services. Imagine a situation, wherein, you start your Windows XP-based system and receive the following error message:
"Hard disk drive failure"
When you start your computer from a Windows 98 startup disk, and then try to execute Fdisk.exe program, you may receive the following error message:
"No fixed disk present"
Cause
•If the hard disk in question is not installed correctly
•If the hard disk is not configured properly in the BIOS
•Or if the hard disk is damaged
Resolution
For installation and configuration related issues of the hard drive, you have to contact your computer manufacturer. However, if you suspect damage and the error message persists even after observing the corrective steps, then contact hard drive recovery experts immediately. Recovery experts would ensure that you get back the lost or deleted data.
Stellar Data Recovery Inc has established an excellent reputation by delivering efficient and safe data recovery services New Jersey. Besides CLASS 100 Clean Rooms, the company boasts of a vast array of top-notch data recovery tools and a team of highly experienced technicians. Stellar's experts are proficient in carrying successful recoveries and adhere to strict data confidentiality norms.
Sunday, September 12, 2010
Data Recovery from old hard drives
I have already crashed my three hard drives since I started working on computers. Imagine each time I have lost all my precious pictures, songs, videos, all were lost. Not only that my important project files were all lost.
I didn't even know if I should mourn the loss of my songs, videos, pictures, mails, or try to get back all the contacts, or re-create the projects that I had to submit in my school (that was when I had lost my first drive), or college (in case of the second drive). And I must say, that have graduated in losing my data to hard drive failure. Though, I have learnt to backup my data, the hard way! But here I must add that even if you haven't taken a backup of your data, it is today possible to recover hard drive data.
When I had first lost my hard drive, I had started hating the manufacturer of that drive. It was a tough time for me! Trying to collect all the things that I could! But there had been some things which I couldn't save! Then I had kept the hard drive as a reminder of the bad times. Same happened with the second drive. But this third time, I knew something had to be done! I searched on the Internet, and there was a lot of information that I gathered.
Hard drives are nothing but a collection of some electromechanical parts, that work hand-in-hand with each other. One of these parts is called platter. As long as this part is intact, then data is safe. So my old friends contact numbers, and my first date's mails should be safe, not to forget the innumerable pictures, audios and videos of the good times spent with friends, and loved ones. So if adequate measures are taken, it is possible to perform hard drive recovery.
I have bought a software to recover hard drive data from all the three hard drives. I installed a software on a new hard drive, connected one of the non-functional hard drive to it, and recovered all the data stored in them one after the other.
Stellar Information Systems Ltd. has a good number of recovery tools that have been specifically designed to to solve all your hard drive recovery needs.
I didn't even know if I should mourn the loss of my songs, videos, pictures, mails, or try to get back all the contacts, or re-create the projects that I had to submit in my school (that was when I had lost my first drive), or college (in case of the second drive). And I must say, that have graduated in losing my data to hard drive failure. Though, I have learnt to backup my data, the hard way! But here I must add that even if you haven't taken a backup of your data, it is today possible to recover hard drive data.
When I had first lost my hard drive, I had started hating the manufacturer of that drive. It was a tough time for me! Trying to collect all the things that I could! But there had been some things which I couldn't save! Then I had kept the hard drive as a reminder of the bad times. Same happened with the second drive. But this third time, I knew something had to be done! I searched on the Internet, and there was a lot of information that I gathered.
Hard drives are nothing but a collection of some electromechanical parts, that work hand-in-hand with each other. One of these parts is called platter. As long as this part is intact, then data is safe. So my old friends contact numbers, and my first date's mails should be safe, not to forget the innumerable pictures, audios and videos of the good times spent with friends, and loved ones. So if adequate measures are taken, it is possible to perform hard drive recovery.
I have bought a software to recover hard drive data from all the three hard drives. I installed a software on a new hard drive, connected one of the non-functional hard drive to it, and recovered all the data stored in them one after the other.
Stellar Information Systems Ltd. has a good number of recovery tools that have been specifically designed to to solve all your hard drive recovery needs.
Wednesday, September 8, 2010
Lets Analyze the causes and prevention of Hard Drive Failure
Although there have been several advancements in the field of hard drive, like very high storage capacity, reduced pricing, reduction in problems occurring due to failure of hard drives, it has still not been possible to completely get rid of hard drive failure and data loss occurring due to such failure. Not all problems can be resolved using the inbuilt tools of the operating systems. That is why; the need for hard drive data recovery has been felt greatly. To make that possible, a good number of reliable hard drive recovery software has been felt since long.
Hard drives fail due to various reasons, and can be recognized by following symptoms:
• System performs slowly
• You might encounter the BSOD (Blue Screen of Death) or some Stop error message.
• Files once saved at a location may not be available
• The system may freeze often
• System stops responding at the time of boot up
• System refuses to boot
One should always test to find out if these errors have been caused by hard drive failure. To analyze this, one should:
• check the hard drive controllers and the power cable
• ensure that the Basic Input/Output System (BIOS) detects the hard drive
• check the consistency and integrity of the drive using disk repair utilities
• scan the hard drive for boot viruses
In case of corruption of system files, or the data structure, you will have to recover data using backup. In these data loss situations, backups are the most vital tools in the hand of the user.
However, if you do not have any backup, then hard drive recovery software is the only option to overcome the disaster. These are third-party software that perform recovery after any data loss instance. With powerful recovery algorithms, these software recover data by scanning every single sector of the hard drive.
Hard drives fail due to various reasons, and can be recognized by following symptoms:
• System performs slowly
• You might encounter the BSOD (Blue Screen of Death) or some Stop error message.
• Files once saved at a location may not be available
• The system may freeze often
• System stops responding at the time of boot up
• System refuses to boot
One should always test to find out if these errors have been caused by hard drive failure. To analyze this, one should:
• check the hard drive controllers and the power cable
• ensure that the Basic Input/Output System (BIOS) detects the hard drive
• check the consistency and integrity of the drive using disk repair utilities
• scan the hard drive for boot viruses
In case of corruption of system files, or the data structure, you will have to recover data using backup. In these data loss situations, backups are the most vital tools in the hand of the user.
However, if you do not have any backup, then hard drive recovery software is the only option to overcome the disaster. These are third-party software that perform recovery after any data loss instance. With powerful recovery algorithms, these software recover data by scanning every single sector of the hard drive.
Monday, September 6, 2010
Hard Drive Data Loss - Is not a panic any more
Hard drives are the heart of any computer, whether it’s a personal computer or a supercomputer. The basic interior of all the hard drives (independent of the manufacturer) is similar. The Western Digital, Seagate, Maxtor, Hitachi, Samsung, Fujitsu are the main players of this game. All the programs and applications are stored here.
Sometimes, issues arise which lead to data loss scenarios in our hard drives. These issues include:
•Corruption of file system
•Cross linking of files
•Improper shut down of the system
•Corruption of the master boot sector
•Corruption of boot sector
In such situations the only thing that can save the work of a user is a valid and updated backup. A backup can be taken on any device, including, tapes, USB drives, external devices, or even in the same hard drive. It is also possible to keep a backup online. A backup can be used to recover hard drive data, irrespective of the reason of data loss. But for all those who have either not maintained a backup, or have a backup, which is not valid or updated, there is still some help available.
With the advancement of technology, it has become possible to perform hard drive recovery after data loss owing to the above mentioned reasons. It is also possible to recover data that has been lost due to different reasons, including, files lost due to emptying of recycle bin or due to pressing of the 'Delete' button while 'Shift' key was pressed, data lost due to formatting or resizing of a particular drive, or due to formatting of the whole disk. There are reliable third party hard drive recovery software that are available in the market today.
Sometimes, issues arise which lead to data loss scenarios in our hard drives. These issues include:
•Corruption of file system
•Cross linking of files
•Improper shut down of the system
•Corruption of the master boot sector
•Corruption of boot sector
In such situations the only thing that can save the work of a user is a valid and updated backup. A backup can be taken on any device, including, tapes, USB drives, external devices, or even in the same hard drive. It is also possible to keep a backup online. A backup can be used to recover hard drive data, irrespective of the reason of data loss. But for all those who have either not maintained a backup, or have a backup, which is not valid or updated, there is still some help available.
With the advancement of technology, it has become possible to perform hard drive recovery after data loss owing to the above mentioned reasons. It is also possible to recover data that has been lost due to different reasons, including, files lost due to emptying of recycle bin or due to pressing of the 'Delete' button while 'Shift' key was pressed, data lost due to formatting or resizing of a particular drive, or due to formatting of the whole disk. There are reliable third party hard drive recovery software that are available in the market today.
Thursday, September 2, 2010
Did you find your Windows XP inaccessible after upgradation?
When we upgrade Windows XP on your system then it may not pay off well. It may show some problems because of damage of some setup files on the hard disk, which does not get overwritten during the upgrade process. Here some corrective measures need to be taken to resolve the issue and if it is not get solved , then a hard drive recovery software is the ultimate solution.
These are the possible error messages :
•C0000221 (Bad Image Checksum)”
•“STOP: C0000221 - Bad Image Checksum in ModuleName”
•“STOP: C0000221 - Bad Image Checksum. User32.dll is possibly corrupt. The header check sum does not match the computed check sum.”
The possible causes behind these errors are :
•There is a damaged file in the Windows folder, and when you performed the upgrade this file was not overwritten by the Setup program.
•One or all of the RAM (Random Access Memory) memory modules, which are fixed in the motherboard, are defective. It may be possible that the RAM configuration is not compatible.
The issue can be fixed through any of these methods
•Copy the User32.dll file from Setup CD: You should run the Windows XP Setup CD to overwrite the damaged User32.dll file. Restart the system after copying the file.
•Remove or replace the problem RAM: You should replace the existing RAM from a new RAM. Or else, try to use different combinations of RAM to check and remove the faulty RAM.
•Install Windows to a different folder: You should perform a parallel installation to another folder.
Although the above methods are very effective to resolve the issue but in case they fail, then the user must switch to some third party hdd recovery software. Stellar Phoenix Windows Data Recovery, is one of the most prestigious name in the field of hard drive recovery software. I have tried it and done a lot of research to test it in different circumstances. It is applicable to deal with exFAT, FAT, and NTFS file systems.
These are the possible error messages :
•C0000221 (Bad Image Checksum)”
•“STOP: C0000221 - Bad Image Checksum in ModuleName”
•“STOP: C0000221 - Bad Image Checksum. User32.dll is possibly corrupt. The header check sum does not match the computed check sum.”
The possible causes behind these errors are :
•There is a damaged file in the Windows folder, and when you performed the upgrade this file was not overwritten by the Setup program.
•One or all of the RAM (Random Access Memory) memory modules, which are fixed in the motherboard, are defective. It may be possible that the RAM configuration is not compatible.
The issue can be fixed through any of these methods
•Copy the User32.dll file from Setup CD: You should run the Windows XP Setup CD to overwrite the damaged User32.dll file. Restart the system after copying the file.
•Remove or replace the problem RAM: You should replace the existing RAM from a new RAM. Or else, try to use different combinations of RAM to check and remove the faulty RAM.
•Install Windows to a different folder: You should perform a parallel installation to another folder.
Although the above methods are very effective to resolve the issue but in case they fail, then the user must switch to some third party hdd recovery software. Stellar Phoenix Windows Data Recovery, is one of the most prestigious name in the field of hard drive recovery software. I have tried it and done a lot of research to test it in different circumstances. It is applicable to deal with exFAT, FAT, and NTFS file systems.
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