Data Recovery Software Help

In Windows NT based operating systems, ntoskrnl.exe runs as a critical process in the boot-up cycle of your computer. It is the kernel image for operating system and is responsible for system services like memory management, hardware virtualization. ntoskrnl.exe corruption primarily occurs due to operating system malfunctioning, unexpected system shutdown, malicious software like virus (w32.bolzano and variants) and more. Two foremost hazards that you might encounter after corruption of this file can be unbootable computer system and data inaccessibility. In such circumstances, the best way to recover your inaccessible data is by restoring it from an up-to-date backup. However, if no backup is available, then you need to use advanced Data Recovery Software to comprehensively recover your data.

In most cases, you might encounter any of the below error messages after ntoskrnl.exe file is either corrupt or missing:

“<windows root>
System32\NTOSKRNL.EXE is missing or corrupt”

Or

“Windows NT could not start because the below file is missing or corrupt:

Drive Letter:\WINNT\System32\Ntoskrnl.exe”

One of the above error messages can appear during system bootup. To resolve the issue, you will need to recreate ntoskrnl.exe by using these steps:

1.      You need to firstly insert the Microsoft Windows XP CD.

2.      Reboot your system. Next, press any key to boot from the CD.

3.      Press R on the Microsoft Windows XP setup screen to enter the Recovery Console.

4.      Enter the administrator password (if any).

5.      Use the following command:

      expand d:\i386\ntoskrnl.ex_ c:\windows\system32

6.      Type Y and then press Enter to overwrite the file.

7.      Type exit to reboot your system.

However, if you still receive any of the above error messages, then you will need to go for clean operating system reinstall. A clean reinstall will erase all data from the selected hard drive partition. To comprehensively recover and restore your lost files and folders, you will need to use powerful Data Recovery tools.

Such utilities ensure absolute recovery and restoration of data from a formatted hard drive partitions. These utilities use advanced scanning methods to perform absolute Data Recovery. With rich graphical interface and user-friendly documentation, these Data Recovery Software serve as self-explanatory applications.

In Windows XP operating system, a STOP error can be caused due to various software issues as operating system file corruption, file system damage, driver issues, malicious software like virus or worm infection etc. The STOP errors can also be caused by hardware problems as motherboard chipset failure, faulty memory modules, hard drive problems etc. STOP error results as unbootable operating system and inaccessibility of data. To restore the lost data, you should use an updated data backup. However, if you have not created any backup or backup falls short of providing the required data, you should use efficient Data Recovery tools to recover lost data.

Consider a practical example, where you encounter the below STOP error message, when you attempt to boot your Windows XP based computer:

“STOP 0×0000007F (UNEXPECTED_KERNEL_MODE_TRAP)”

After the error message appears, data saved on the hard disk becomes inaccessible. In addition, you encounter the same error message each time you attempt to restart your system.

Cause:

The above STOP 0×7F error message occurs when a trap in the Kernel mode is caused by any of the below reasons:

·        Low-level hardware corruption like corrupt Random Access Memory (RAM)

·        Mismatched memory modules

·        A malfunctioning computer motherboard

·        Software corruption like File system damage, Operating system corruption etc.

Resolution:

To resolve the above error and access the data, you should follow these steps:

• Test the system RAM by running diagnostic software provided by the computer manufacturer. Replace the RAM that is reported as corrupted.
• In case of motherboard corruption, get the motherboard replaced.
• If you are overclocking the speed of your processor, set it back to the speed at which it is designed to run.
• Consult the hardware vendor for any updated hardware drivers and/or BIOS updates.
• Try swapping or removing controllers, cards or other peripherals from your system.

However, if all the above procedures fail to determine the problem and you again receive STOP 0×7F error message, then you should reinstall the Windows XP operating system. A clean reinstall of Windows XP operating system will completely erase all data from the selected partition. For absolute recovery of lost data, you should use powerful Data Recovery Software. These utility software incorporate advanced scanning algorithms to completely recover your lost data from a formatted hard drive. Such Data Recovery tools provide simple user interface that makes them easy-to-understand without sound technical knowledge.

Norton GoBack enables you to save the changes made upto 8 GB on your hard drive. This Windows based disk utility enables you to revert back the disk drive to a particular safe point. It also enables a user to restore older versions of files and to browse the previous states of whole hard drive. However, after installing this application, when you restart your system, you might receive an error message. Once the error message appears, the system gets halted and becomes unbootable. In such situations, if you have not created an updated data backup on a different drive, you need to go for Data Recovery Software to extract your files.

As a practical instance, you encounter the below error message after you install Norton GoBack software on your computer and then restart your system:

“C000021a (fatal system error)
The session manager initialization system process terminated unexpectedly with a status of 0xc000003a (0×00000000, 0×00000000)”

Cause:

The above error message mainly occurs when you have installed Norton GoBack software on your system and it is present in the boot sector. The user encounters the same error message each time he attempts to start his computer.

Resolution:

To resolve the above problem and access hard drive data, you need to disable Norton GoBack and uninstall it. You can not disable or uninstall Norton GoBack in Safe Mode. For complete uninstall, you need to follow below steps:

1. You need to restart your computer system.
2. During the startup process, press space bar to access GoBack’s menu options.
3. Enter the option for Disable GoBack when prompted and then allow the computer to complete the startup process.
4. Click Start, and then click Control Panel. In Control Panel, open Add or Remove Programs.
5. In the list of installed programs, select GoBack and click Remove.
6. Finally, follow the on-screen commands to completely uninstall Norton GoBack.

However, if you are unable to uninstall Norton GoBack by following the above steps and encounter the same error message at Windows XP startup, you need to reinstall the operating system. A clean reinstall of Windows XP operating system will result as complete loss of data from the Windows partition. In the absence of updated data backup, you need to use advanced File Recovery application to recover all files and folders after Windows reinstall. Such Data Recovery utilities employ advanced scanning methods to recover and restore lost data from a formatted hard drive. These user-friendly utilities provide interactive interface, which makes these applications easy-to-understand without prior technical knowledge.

In general terms, firmware is the set of instructions i.e. program that is embedded on an electronic device and controls it. For hard drive, this is a program that is built into it and keeps control of it. It is meant to run the hard drive as per the logic required. It is simply defined as software on hardware. It is a software program which is found on PCB (Printed Circuit Board) flash memory. The typical functions of firmware include configuring hard drive while startup, interacting with hard drive’s components while working and correctly powering down hard drive. If the firmware gets corrupt, hard drive will become inaccessible. In the absence of data backup, it causes data loss and Data Recovery service becomes necessary.

While the firmware is corrupt, the system can not access hard disk data. As the nature of the issue is, the corrupt firmware needs to be reprogrammed by low level programming techniques. These techniques usually require experienced programmers.

The symptoms of hard disk corruption differ as per the extent of damage.

• If the extent of damage is high, BIOS may fail to recognize such hard drive.
• In case of partial corruption, system may run slow or hang while booting.

Low-level reprogramming of firmware is the solution to correct the issue. Data Recovery experts affirm that it is a safe procedure, if done properly and by following the proper guidelines. Such failed hard drives need to be checked through suitable procedures that include safe dissection of hard drive in Clean Rooms. Clean Room surroundings give an appropriate lab environment that is completely free from moisture, dust, ESD (Electrostatic Discharge), high or low temperature and pressure etc. It is meant for environmental problem free work routine so that the sensitive disk internals remain safe.

Hard Disk Recovery is performed for extracting data in other cases also that can be mechanical or electronic failures. Data in such cases is recovered using definite procedures, which involve replacing the damaged internals and applying careful and technical data extraction processes. Recovery service is the solution in each physical failure case.

The dual boot systems enable you to use features of two different operating systems on a single computer system. A user can install two different operating systems starting from the older one. It is preferred to partition the hard disk first and create at least two partitions. However, problems might occur when you install an older operating system like Windows XP on a Windows Vista system. In such situations, you receive an error message at system startup and data saved in the hard drive becomes inaccessible. If you have not maintained any updated data backup, you need to use advanced Data Recovery Software to access the data.

Consider a practical scenario, where a user has a Windows Vista based system and he installs Windows XP on a different partition. After the installation process is complete, when the user restarts the computer, he encounters the below error message:

“A disk read error has occurred. Press CTRL+ALT+DEL to restart.”

The user receives the same error message each time he restarts the computer system after pressing CTRL+ALT+DEL key combination. After the above error message appears, the data saved in the hard disk becomes inaccessible. The main cause of the above error message is that the user has installed a version of Windows that is older than Windows Vista. The problem arises because the Setup process in the previous version of Windows attempts to overwrite the boot sector on the main Windows Vista partition.

Resolution:

To resolve the above error and access the data saved in the hard drive, the user needs to follow these steps:

• The user should install earlier Windows XP on the primary boot partition.
• Then the user needs to install Windows Vista on a new partition.
• If the user wants to start from more than one Windows operating system, install the earliest version of Windows first, and then install the later versions in their order of release. Here, the user needs to firstly install Windows XP operating system and then Windows Vista operating system.
• The user needs to install each operating system according to the standard installation procedure.

To access the data saved in the hard drive, the user needs to use powerful Data Recovery applications. Data Recovery Software employ effective and high-end scanning methods to recover and restore inaccessible data from hard drives.

Stellar Phoenix Windows Data Recovery is the foremost Data Recovery utility that fulfills all the requirements of providing absolute and systematic File Recovery. It is supports with FAT16, FAT32, VFAT, NTFS and NTFS5 file systems. It is compatible with Windows Vista, XP, 2003 and 2000. This recovery utility supports more than 300 file types.