Linux is the most popular operating system so far as security and performance is concerned .It is a Unix-like operating system and is the best example of open source development and free software; generally all underlying Linux source code can be modified, redistributed and used freely by anyone. Red Hat Enterprise Linux 5.2 is the latest version of Linux operating system.

As we all know every operating system has its demerits or failures and can give errors at any time with out any prior information. There are some common error messages faced by Linux users while using this operating system. Some of the most common ones are the following:

In most the situations given above a user faces any of the mentioned problems, it becomes difficult for him/her to access or manage his data. He/she won’t be able to do normal tasks which can otherwise be performed effortlessly. If the data which has been rendered inaccessible is important then it becomes essential to recover that data as soon as possible. In this case, he/she would need the help of Linux data recovery software.

Linux Data Recovery Software is an ultimate way out for all Linux related data recovery problems. It also recovers data from formatted hard drives also where file systems have been changed. It recovers lost logical drives and data from physical disk or any removable media.

Stellar Phoenix Linux Recovery software provides data recovery from Ext2, Ext2 and Reiser FS file systems of Linux operating system.

By: Allen Sood, Linux Data Recovery

Ext3 is the most popular file system used in Linux operating system. This is the most efficient and fast Linux file system. It was the first journaled Linux file system. It is the default file system for some of the popular Linux flavours. The Ext3 file system has several data structures for storing the file system information.

The popular name for these file system data structures are also known as metadata structures. The important metadata structures contained in the Ext3 file system are super block, boot block, Inode table and descriptor table. In Ext3 file system, both file contents and metadata are written to the journal prior to be written to the main file.

We know that the Journal is comparatively incessant on the disk, this can improve system performance in some circumstances. In other conditions, performance gets decrease because the data must be written twice. Ext3 file system is treated as a reliable file system as it uses Journaling methods. But there are some situations where you may find that your operating system can’t find the specified file on your computer hard drive and shows some sort of error messages.

These error messages are “File Not Found”, “Can’t open the file” and “The file is no longer exist”.

The cause of the problem might be due to corruption or deletion of Ext3 file system. In this case, the operating system can’t find the path of the file for that you have requested. In these situations, the data on your Linux hard drive becomes inaccessible and it can lead to the nightmare of data loss. In these circumstances, if the lost data was very important, it becomes necessary to recover them.

You can recover these lost data with the help of data recovery software known as Linux Recovery. Linux data recovery are special data recovery tools that can help you in recovering your lost data from Linux hard drive in cases where data has been lost due to File system corruption or deletion, accidental deletion, missing logical volume, virus attack or operating system corruption.

This software can recover the lost data from all flavors of Linux operating system Ext2 Recovery, Ext3 Recovery and ReiserFS file system

By: Jonny Defh, Linux Data Recovery

S.M.A.R.T. or Self-Monitoring Analysis and Reporting Technology is a monitoring system for computer hard disks to detect and report on various indicators of reliability, in the with the aim of anticipating failures. It keeps check on the internal health of the hard drive. It checks the hard drive upon certain factors of reliability like heat, spin-rate noise level, damaged sectors etc. Thus we can take preventive steps on the basis of S.M.A.R.T. reports and rely on it.

The hard disks with SMART may prompt an error at each startup, like:
“WARNING: Immediately back up your data and replace your hard disk drive. A failure may be imminent. SMART failure predicted on primary slave.”

The user should not ignore this error message. If not taken care of, the failure is inevitable and then comes the need for Hard Drive Recovery solutions. If taken care of, such hard drives give enough time to backup data. The hard drive needs to be replaced and if user has valid and recent backup, it can be restored with no cost.

If one ignores this SMART warning, it may cost in terms of data loss and in this case hard drive recovery solutions is the ultimate solution. At data recovery services the experts first analyze the failed hard drives and then take the necessary steps in order to retrieve the data from it. After that the service providers communicate the results with the customers who can agree upon their norms and conditions.

The hard drive recovery experts carry special technical procedures to extract data. Some of these techniques are read/write head replacement, disk mirroring, intermediate hard drive repair, etc.

Stellar Information Systems Ltd. offers one of the best services with Class 100 Clean Rooms, finest data extracting procedures and sophisticated tools. Stellar is the most eminent name in the field of data recovery. Stellar Hard Drive Recovery Software can recover data from all sorts of hard drives and for all interfaces including SATA, PATA and SCSI.

By: simpson Raid, partition recovery software

It does not matter, how many user accounts do you have, you may forget about writing down all passwords, it is not safe and this sheet can be lost at once. We suggest another way for password pst recovery, you can try Recovery Toolbox for Outlook Password and make sure that this program can successfully open any mailbox in pst format that becomes locked because of forgotten or lost account details. Do you know an easier way to access user mailboxes? If you have any doubts that it works, you may get demo version of Recovery Toolbox for Outlook Password Outlook pst password recovery tool and evaluate pst password recovery tools.

Recovery Toolbox for Outlook Password is a small program, the Microsoft Outlook pst password recovery tool can be deployed on user workstations within several minutes. After this, you can open the .pst password recovery tools and press “Open PST File”, another window will appear. As you see, the process of Microsoft Outlook pst password recovery is not too complicated, there is the only “Get Password” softkey and you should press it for Microsoft pst password recovery. The results of password recovery for pst file are ready within several seconds, but you will see a strange combination that has nothing in common with the original password, set by account owner.

Do not worry, you can copy this combination and paste it to Microsoft Outlook. As you see, it is accepted and the process of password recovery pst file is successful. Do not hesitate to change the password to another one that will be easier to remember. In this case, you can avoid the procedure of password recovery for pst in future.

By: Recovery Toolbox Inc

Recovery Toolbox for Word is designed to restore text files in Microsoft Word format. Frankly speaking, this program is not needed, if your text documents are opened normally. In the same time, the program to fix Word files can be compared with an insurance policy for your information. Usually, we purchase our insurance policies in advance, the same with Recovery Toolbox for Word fix damage Word file. If you are going to increase the efficiency of fix Word encoding, you should install this program right now and protect your text documents in Microsoft Word format.

It should be noted that Recovery Toolbox for Word is shareware and its free version is distributed without limitations. The performance of your workstation is not the limit anymore, you may deploy the service of fix corrupted Word files on any PC, regardless its CPU performance and other parameters. Thanks to the small size of Recovery Toolbox for Word, the solution for fix Word 2007 can be quickly installed on your PC, just double click the original file and follow the instructions.

After this, you can launch Recovery Toolbox for Word and get acquainted with this program for fix file Word. Do you have any questions, something like: how to fix a corrupted Word file, how to fix corrupted Word file and how to fix corrupted Word files? You can easily fix corrupted Word files, just select the needed one and press the Analyze button to proceed. The parsing of selected Microsoft Word documents can take a while, do not interrupt this process.

By: Recovery Toolbox Inc

Many users often work with zip archives, but not all of us know, what we should do if the source file becomes corrupted. We think that the corruption of zip files is a common problem for many users and there are some factors that increase your chances to encounter the same issue. Very often, the instability of compressed files is caused by unstable Internet connection and some other external and internal factors. We recommend that you try Recovery Toolbox for Zip check integrity file zip, this zip file checker easily opens compressed files if their internal structure is corrupted.

It is great, if you can install two programs, Recovery Toolbox for Zip and the original Zip archiver on your PC. In this case, you can open damaged files and perform the process of zip file integrity check for all files. Can you imagine, how much time you can save with this way of check zip file integrity? Owing to Recovery Toolbox for Zip check corrupt zip file, you can avoid useless and time consuming attempts to redownload the source archive without zip file check. Zip archiving utility blocks the decompression of source files, if their integrity is broken. However, you may bypass this limitation with Recovery Toolbox for Zip.

Do you still ask, how to check corrupt zip file and is it possible to check zip files at all? Recovery Toolbox for Zip is a good way out, if you are pressed in time, the process of check corrupt zip requires no instructions, users may check zip file immediately after the deployment of Recovery Toolbox for Zip.

By: Recovery Toolbox Inc

If you are having Old system and plan to upgrade your windows with new version while upgrade of Windows XP from any newer version of Windows, you might face one or more of below given symptoms:

During Windows XP Setup after the first reboot you may get any of the following error messages:
The setup might stop the progress with a blank black screen after the first reboot.

Stop: 0×0000007b (0xf898963c, 0xc0000034, 0×00000000, 0×00000000)

Setup has determined that Drive C: is corrupted and cannot be repaired. To quit setup press F3.

No operating system.

Windows could not start because of the following ARC firmware boot configuration problem. Did not properly generate ARC name for HAL and System path. Please check the windows documentation about ARC configuration options and your hardware reference manuals for additional information.

The secondary hard disk that worked fine with other Windows operating system versions might appear to be corrupted or Can have zero byte of size, After completing the installation process,

After these activities, may stop the upgrade process also your booting process will stop .All drives stored data becomes hard to find and you face the challenging situation Data loss.

On basis of this issue

You may come across this behavior if you are using the partition recovery software for controlling your hard drive. Few versions of such drive overlay software might not be compatible with Microsoft Windows XP. Same situation with the upgrade process f it does not complete then you can face the serious situation of Windows partition loss and thus data loss.

To keep away from this problem in future, contact the vendor of drive overlay software make query about the solution to this problem.

Don’t try to use fdisk/mbr command from Windows startup disk or fixmbr command in the Windows XP Recovery Console. Both these commands would destroy the drive overlay MBR information and it might cause severe data loss.

Solution of this type of problem, you need to repartition and reformat your hard drive possibly by using Microsoft Windows XP CD and then reinstall a fresh copy of Windows XP. The format operation will remove all your hard drive partitions and you won’t be able to access data. It will demand for partition recovery .

By: simpson Raid, partition recovery software

A lot of people have some information that they would rather not share with anyone - passwords, sensitive information, classified documents from work, the list can be expanded forever. Perhaps you have saved some of this data on your computer where it is conveniently at your reach, but when the time comes to erase the files from your HDD, things get a bit more complicated and saving your privacy is not as easy as it may have seemed at first.

Standard file and folder erasing can be insecure.

Your first thought may be that when you delete a file, the data is gone. Unfortunately, when you erase file or folder, the OS does not really remove the files from the HDD; it only removes the reference of the file from the file system table. The data keeps on the hard driver as long as another file is created over it, and even after that, it might be possible to recover information by exploring the magnetic fields on the disk platter surface. Before the file is overwritten, anyone can easily get it with a disk maintenance or an undelete utility.

For instance, imagine that you have been surfing on the Internet for a while and afterwards wish to clear any traces revealing what pages you visited. You go to Internet Explorer settings and select to delete the cache and the history file, the information is now gone you think to yourself - well think again. The browser cache files can with no trouble be restored with an undelete software and your privacy is once again compromised.

To be sure that a file is gone, its contents must be appropriately overwritten before deleting. As simple as it looks, there are several difficulties in secure data erasing, mostly caused by the construction of a disk and the use of files encoding. These troubles have been taken into account when special eraser utility is designed and because this intuitive design you able to safely and easily delete sensitive files from your hard disk.

You have most likely already insecurely erased countless amount of files from the hard driver and from time to time applications create (and insecurely remove) temporary files on your HDD containing some possibly personal data that you would rather not show to anyone. This data remains on the disk until it gets overwritten and can be restored with simple HDD utility.

This is where the erasing of unused hard driver space can be useful. The erasing of free hard driver space means that all unused space on your HDD will be overwritten so that data earlier saved on it cannot be retrieved. Good eraser software provides you a convenient way to erase the unused hard driver space regularly in order to remove the remains of temporary files and other sensitive data you possibly have had on your hard driver.

You must be asking what this application does to my computer when erasing data. You have come to the right place, the procedures gone through when erasing files are explained in this article.

After determining the type of the file (data encrypted or compressed at the file system level are supported on Windows NT and 2000, but Administrator rights are required for low-level HDD access), Eraser needs to calculate the size of the file. When calculating the size, the cluster tip area is included so the data stored on it will be erased too.

Once the size is calculated, the data will be overwritten with the special technique (see full descriptions of the techniques bellow). Eraser tool takes care of flushing write buffers to make sure that the data really gets written to the disk and is not only saved in a buffer somewhere. If the overwriting was successful, the final step is to correctly erase the file.

Before deleting the reference of the data from the file system (normal remove), the file will be truncated to zero length to clear traces of the allocated clusters, the filename will be overwritten and finally file dates (creation, access and modified) will be scrambled to complete the file deleting.

Gutmann’s Method

Based on Gutmann’s article “Secure Deletion of Data from Magnetic and Solid-State Memory”, this method provides the best security. File will be written 35 times with carefully selected patterns, which makes it unrecoverable.

This method is used as the default for erasing data, but has been proven to be very slow when clearing free space on a hard driver (could be several gigabytes).

A Faster Method - US DoD 5220-22.M

Two methods based on United States Department of Defense recommendation 5220-22.M from January 1995. The data will be overwritten seven times making this method much faster than the first one, but also less secure when it comes to hardware recovery.

Random Data

All passes will be pseudorandom data, which is very incompressible. Therefore, this is the only method that should be used when deleting free space or information on a compressed drive. The number of passes is user selectable from one to 65535.

Being the fastest method, this one is used as recommended for deleting unused disk space.

By: Jim.Olivera, open source file deleting program

fstab and mtab are two important files, found on Linux systems.

In case if system finds errors with any of these files, probably due to corruption, system may fail to mount with the following error:

“Cannot read table of mounted file systems”

Other than file corruption, the reason could be file deletion. When the mount command is used to mount the file system, it reads fstab file to know the valid options available to mount, while mtab is used to mark an entry that indicates file system in use and process of their use. So if any of these file is found to be corrupt or missing, system fails to mount the required file system and results errors.

In order to resolve the issue, we can format the disk and reinstall the system after backing up the data. This will refresh all the files, including all damaged ones. Users should always check for the backup status or else the backup will fail to completely restore the information. Also if backup copy doesn’t have required files, it can’t be taken as valid. In such cases, Linux Recovery is required and specialized third party applications can accomplish the same.

Linux Data Recovery software are special tools to recover lost data from Linux systems. These can scan the affected drives, locate the required information, recover it and then safely restore at the safe location. Generally, these tools are designed as read-only and so can be used for secure Data Recovery Linux. The applications are easy to use because of the interactive interface they have.

Stellar Phoenix Linux Data Recovery recovers and restores lost data from ext2, ext3 and reiserFS file systems. The application offers graphically rich user interface to work through. It can be used with most of the Linux distributions like Red Hat, TurboLinux, Gentoo, SlackWare and others. This Linux Data Recovery software gives various advanced features that assist in recovering lost data easily.

By: Jonny Defh, Linux Data Recovery

If you lose your important data and information or have problems in accessing it due to physical problems with hard drive, then you should take assistance from the Hard Disk Recovery experts. In case of physical data loss, you can not solve the problem on your own.

When you feel that your hard drive is facing data loss problems, you should immediately turn off the computer. At this point of time, you should not do the following things:

Do not work on the failed media, it might cause further damage.

Do not open the failed drive in general environment.

The dust particles available in the environment may damage its sensitive platters and may cause permanent data loss.

Do not run any disk repair or data recovery software on the hard drive. It might overwrite the lost data and may make it irretrievable.

Hard Drive Recovery specialists provide a wide range of solutions to handle most of the physical data loss situations. For example service may include dealing with the hard drive whose head has got crashed due to accidental drop down and a drive that is facing logic board problems due to power outages.
There are several methods that the data recovery professionals might use to get your significant data back and restore your system to the full working state. They use software to create image of the drive and work on that image to recover data. It leaves your original drive intact.

They are also able to repair or replace the damaged components (that might be the root cause of the problem) of your hard drive. They know all ins and outs of the hard drive and thus ensure safe, smooth and successful Hard Disk Recovery
Professionals have all required tools and techniques to achieve absolute recovery of your business critical data. They work through the sterile environment of Clean Rooms. Clean Rooms are specially designed labs that have safe and controlled environment to operate on your hard drive and save it from environmental factors like dust.

You should always find out a Hard Drive Recovery company that has high relevant experience and expertise in the field. Before finalizing a recovery company, complete analysis is required.

Stellar Information Systems Limited is the leading data recovery company, having more than 15 years of rich experience. Stellar’s recovery service is carried out in State Of The Art Class 100 Clean Rooms by highly qualified and skilled professionals. It is available for all kinds of hard drives including IDE/EIDE/SCSI/SATA.

hard drive recovery software