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Mac OSX is featured with different advanced features like great sound quality and graphics etc. These features have made it most acceptable operating system of this date. Almost all the Mac hard drives are equipped with GUID partition table scheme whereas PC – formatted hard drive makes use of MBR scheme. When fsck is run to check or fix damaged Mac OSX partitions then it displays error messages. This type of problem is experienced by the users because system expects Unix file system having unique identifier called magic number. When it is unable to search out magic number then the partition is damaged and it cannot be recovered.

Take an example you try to install Boot Camp to get different benefits and usability. Later on you found that one of the OSX partition was not detected. In case the partition of the Mac OSX is damaged but when you try to repair it by using fsck then following message is reported:

"BAD SUPER BLOCK: MAGIC NUMBER WRONG"...

Disk partitioning is often required by users who want to efficiently manage their operating system files, program files, and user data. In addition to increasing the system performance, it allows the users to go for multi-boot setups. But people often confuse on what tool to use and which partitioning scheme to employ. Windows Vista makes disk partitioning easy by incorporating a built-in disk management utility, which allows the users to format drives, create and delete partitions, resize partitions etc. Incorrect partitioning and resizing give rise to several disk-related errors causing partition inaccessibility and subsequent data loss. To overcome the problem and recover the lost data back, you need to go for partition recovery through a reliable third-party utility.

Let's illustrate a practical scenario. Suppose, you are using Windows Vista-based computer. When you try to shrink or resize a partition on your hard disk using Gparted partitioning software, you may receive the following error message:...

In the Windows systems, the HAL (Hardware Abstraction Layer) is the file that acts as a abstraction layer between the hardware components and the software applications. Its main feature is to hide the hardware parts from the kernel so that it can be used on different types of hardware configurations without much difficulty. Hence, when this file is missing or is corrupt then you would not be able to access the system. In these cases, you should try to fix the problem using appropriate corrective measures failing which you would have to resort to using a third-party partition recovery software to recover partitions in the system.

Consider a scenario in which you are trying to start your Windows XP system but unable to do so. The following error message is getting displayed in this case:

“Winnt_root\System32\Hal.dll missing or corrupt:

Please re-install a copy of the above file.”

Cause:

This error can appear because of the following reasons:...

Many times it happens with many people, when startig the Windows XP based computer with NTFS.sys file system, an error message pops up. The error message reads like:

“Windows could not start because the following file is missing: \system32\drivers\ntfs.sys”

This is a problem with the NTFS partition of your computer. After you recieve the error message, you are unable to start your system any more, hence unable to access any of your data in the computer. This is a pure case of data loss and may require NTFS partition recovery software.

Causes:

You recieve the above error message when, you perform any of the following events:

If you have installed Windows XP Service Pack 2 (SP2) If you have installed Windows XP SP1 rollup after enabling the hyper-threading have or installtion of another processor to your system. This has occured because as Rollup 1 was released prior to Windows XP SP2, and you have installed rollup after the installation of Windows XP SP2. This should not be be done logically...

The USN journal (or Update Sequence Number Journal) is a new feature introduced with NTFS v3.0. that is responsible for keeping track of all the changes that occur to the files, streams, and directories present on the NTFS volume. It also records changes in their attributes or security settings. The '$Logfile' is another functionality that is added to the NTFS file system. It is basically an NTFS log file that is used to record any meta changes to the NTFS volume. If these files become corrupt due to any reason or contain some invalid records, it may cause NTFS volume corruption. If the damaged volume is your boot volume, then it may make your system unbootable which would further result in losing all the vital data stored in your system. To recover back your lost data from the corrupt NTFS volume, you need to go for Windows partition recovery through a reliable third party utility...

Data recovery from your PC's inaccessible or corrupt NTFS partition is possible by following certain steps. You should know these steps to save your precious data from being deleted by logical or physical causes. It would be a blunder if you could retrieve your data by following some simple steps but did not because you were not aware of it. Your Windows computer generally shows some error message which can lead you to the cause of the problem and subsequently, to its resolution. You also have the option of NTFS partition recovery software if your attempts at getting back your deleted data fail.

Symptom:- You were hoping to access your file but instead of opening, the following message showed:-

“The directory or file is corrupt or unreadable. Please run Chkdsk utility”

You might get another message accompanying this with the following on it:-

“NTFS partition not accessible”...

Are you all at sea about what you need to do for getting back your lost data from a corrupt or formatted NTFS drive? NTFS Data Recovery from PCs whose one or more hard disk partitions are formatted becomes essential if there is vital data that have been lost due to formatting. Also, where the NTFS partition is corrupt or damaged, it often happens that some sort of error message pops up when you are trying to access the files saved in your hard drive. . There are some avoidable causes for this but they are likely to show up from time to time.

Some of the reasons for data loss are partition corruption and resizing, repartitioning of hard drive unsuccessfully, file system damage, hard drive formatting, virus attack, boot sector problems, etc. NTFS data recovery is not completely out of question for the layman PC user. There are some very useful instructions following which you can recover the data from the formatted or corrupt NTFS computer...

A hard drive in a computer system is the most basic device for data storage. With the advancements in technology and with the amount of time and work we dedicate on our systems, the storage capacity of the hard drive has increased immensely. Along with that, the hard drive has become more compact making it convenient to carry around. Having said that, at times you are unable to start your computer because of hard drive corruption. Such corruption issues may occur due to various reasons such as corrupt system registry, virus infections, power outages, faulty hardware components, etc. In such cases, there are numerous corrective measures that you can try to recover files. If nothing works out, then you should use a third-party Partition recovery software to recover all the Windows data.

Let us consider a situation in which you are unable to start your Windows 2000 system. The following error message is displayed in this regard:...

With the increase in popularity of Microsoft Windows operating system, there has been a steep increase in the demands of the customers, and changing times. And the users, love to upgrade their systems from one version to another, to enjoy additional features and interactivity. But it has always been advised to the users of computers that they should backup their partition data frequently, and especially before an upgrade. This acts as an insurance for them, in case the system develops some problems, and their crucial data is at the verge of loss. The backup helps them comprehensively recover partition data, and avert data loss. Otherwise, the user has to opt for a partition recovery software.

Let use take a practical example to understand this more in detail. After upgrading your Windows system to Microsoft Windows XP, consider, you receive following error message:

Windows could not start because the following file is missing or corrupt:...

File system of our computer is meant to store and manage data in the storage media. As all information for accessing the data in the media lies with the file system, any instance of corruption/damage to the file system results in the loss or inaccessibility of the troubled partitions or volumes of the storage media. On the parts of normal users and even sometimes in case of experienced users, corruption of file system leading to the loss or inaccessibility of partitions are very critical to handle. In such cases, any partition recovery software can be immensely helpful in recovering your valuable data back.

Among many instances of file system corruption, during the open, delete or rename operation of a file using either the file manager or the command prompt, an error message flashes on the screen leading to the complete inaccessibility of data. The error message that one may encounter can be any of the following:...

Many of us often opt for having dual-boot operating systems. Nothing wrong in that, as it enables you to have a look-in for both types of operating systems. It is very helpful when you want to switch to a new operating system and want to test it before going for the actual switch. However, at times things go awry and you are unable to get access to the earlier version of operating system. This can happen because of various reasons and you should check the actual cause to recover partitions using appropriate methods. If the problem is not solved, then you should use a third-party Windows partition recovery software to resolve the problem.

Let us assume a practical situation that appears when you have installed Windows Vista on a system that already had Windows XP. Now, after doing this you are unable to start the Windows XP system. An error message is displayed in this situation, which is:...

In the computer systems, the hard drives are divided into logical parts, called partitions, that seem as if there are distinct hard disks altogether. Partitioning the hard drive serves some good purposes such as to keep the user data and program files separate from each other, or to keep important data away from the boot partition so that the data remains safe in case of data corruption. These cases can arise due to different issues such as virus infections, abrupt or unplanned system shutdowns, power outages, etc. In such cases, you should try to resolve the issue using appropriate resolving methods. If you are unable to do that, you should recover partitions using a third-party partition recovery software.

Let us assume that you have a Windows XP Service Pack 2 system. When you try to start it, you are unable to do so as the system halts after the boot process showing a black screen. The following error message is displayed on your screen:...

When it comes to proper organization and storage of data, partitions are considered to be a reliable solution. They not only help to increase the system performance but also help us to recover data in case of a major system crash. Like suppose, your OS and some application programs don't work properly, then in that case also you may have your data safe in the other partitions created on that drive. But as we know, a computer data is prone to corruption, so even a partition may get lost. And partition recovery is one thing that has come up with handy solution not only for the computer users worldwide but also for the system architects and designers.

Some error messages may flash on your screen when a partition data is lost or damaged:

"Disk read error has occurred." OR “Windows could not start because the following file is missing or corrupt. Windows root\system32\hal.dll.” OR "The disk in drive is not formatted. Do you want to format it now?"...

The Windows operating system uses HAL (Hardware Abstraction Layer) for the Windows NT series of operating systems. This hal.dll file is actually a layer of software products that directly interacts with the system hardware. Because of this, different applications and device drives do not need to deal directly with the hardware and must make calls to HAL routines to determine hardware specific information, thereby making your job much easier. However, at times this file gets corrupt due to which you cannot start your computer as the system is unable to detect the active partition. There are several methods that should be tried out to bring the system in order. If these methods do not work, then you should use a third-party Windows partition recovery software to recover the inaccessible data.

Such a problem can occur when you try to start your Windows XP system. You may face the following error message in this case:...

The MFT (Master File Table) is a repository in the NTFS file system that keeps the record of all the file data including file name, creation date, access permissions, and contents, etc. To view any type of information related to the files, you can refer to the MFT. However, at times the MFT itself gets corrupt due to too many files. Because of this, you may not be able to even start your system. You can use the 'Bcupdate.exe' utility to get rid of this problem. If that tool is unable to recover partition data, then you should use a third-party partition recovery software to overcome this situation.

Let us consider a situation in which you are using Windows XP and are unable to start it after the boot process gets over. In this case, the following error is displayed:

“NTLDR is missing Press CTRL+ALT+DEL to restart.”

Cause:...

The BIOS (Basic Input Output System) of your system is the first code run by your PC when powered on. The primary function of the BIOS is to load the operating system, initialize all the devices attached and are properly synchronize. The BIOS has a menu system and you can change it's settings to set the order of the boot device, modify date/time, enable/disable anti-virus etc. However, you should be careful in making the changes, as that may lead to corruption of the partition table. Sometimes, the wrong change in settings may result in popping up an error message and the booting process is halted every time you start up. As very few people take regular backup, any effective partition recovery software is the only option left with the user to recover his/her inaccessible data...

It is not an uncommon phenomenon that the Windows system gives an error, indicating damage to system files, partitions, or the operating system itself. Needless to say, the user has in such situations little choice, but to opt for Windows data recovery. This process though not impossible, may at times be difficult to perform. For example, flashing of an error message indicating absence or damage of the Boot.ini file, or the file containing incorrect entries is a clear indication of an unbootable system, amounting to loss of all the data saved in the hard disk, unless ways are devised to recover partition.

Following error messages are indicative of the above mentioned problem:

'Windows could not start because the following file is missing or corrupt:

Windows\System32\Hal.dll'

Or,

'Invalid Boot.ini'...

On Intel-based computers, the system partition should be a primary partition that needs to be marked as active to start the computer. This partition should be placed on the disk that the computer accesses at the startup. However, there may occur a situation in which you are unable to start the system because of the loss of critical boot files. In such cases, you should restore the missing files to recover partition. If the problem is not solved by doing this, then an efficient third-party partition recovery software must be used to do the needful.

Consider a situation in which you are using Windows XP and marked the primary partition as active with the help of Windows Disk Management snap-in tool. However, when you restart the computer, it does not start and you may receive the following error message:

“NTLDR is missing.

Press Ctrl+Alt+Del to restart.”

Cause:...

A hard disk is part of a unit that stores and provides relatively quick access to large amounts of data. These days, the computers usually come with a hard disk that contains several gigabytes of storage. However, if you want to upgrade your system by adding another hard disk to it you can surely do it. In that case, the new hard disk will be made the primary hard disk whereas the older one will be the secondary hard disk. This process is known as “slaving” and the slaved hard disk is usually used for data backup purposes. However, sometimes it may happen that when you do slave the secondary hard disk, the primary hard disk becomes inaccessible. This issue can be addressed by using a partition recovery software.

Consider a scenario wherein you want to upgrade from a 40 GB hard disk to a 160 GB hard disk. You swapped the disks and attached the 160 GB disk. You made 3 partitions in the new hard disk. Now, you want to attach the older hard disk to use it as a slave hard disk for data backup purposes. After attaching the secondary hard disk, you are not able to view the primary hard disk in the BIOS...

In general, system32 is a directory, which is required if your are using Microsoft Windows operating system. This system directory resides in the primary partition of the Windows hard drive and basically at C:\Windows\System32. The Windows system needs some of the critical files stored in the system32 directory and in case, any such file gets corrupted or is missing, then the system fails to boot-up resulting data loss or inaccessibility of the concerned partition. If you have taken backup of your data earlier, then, you can restore them from their or else, you have to take the help of an partition recovery software to recover and restore them to a safer location.

Let us suppose that you are using a dual boot system, one is Microsoft Windows XP and the other is a Windows 2000 operating system on your home computer. First of all you tried to boot your system from Windows XP and receive some boot time error relating to system32. As you fail to boot from XP, you try your hand out through Windows 2000 and tried to access the system32 directory with Windows explorer. In the due course, you are again at the receiving end of another fatal error. Moreover, you tried one more attempt to peep inside the system32 folder and to your utter dismay, the particular folder is not visible. The error reads as below:...