Windows Data Recovery Software
Windows recovery software saves from danger the lost data including important documents, office data, images, audio files, and video files from formatted FAT16, FAT32, VFAT, NTFS and NTFS5 file system. Windows with FAT+NTFS file systems hard disk data recovery software utility restores deleted or lost data which is not found in a recycle bin. It also allows recovering deleted files using SHIFT+DELETE key.
This repair software restores all file types such as: TXT, DOC, PDF, TIFF, BMP, JPG, JPEG, MPEG, AVI, PNG, MP3, WMP and others. It is safe and effective and can be applied as a forensic method for investigating.
Windows hard disk recovery software supports practically all hard disk drives such as: IDE, EIDE, SATA, and SCSI.
Windows partition recovery software tool gives support to such disk manufacturers as: Hitachi, Quantam, NEC, IBM, Toshiba, Samsung and many others.
Windows data recovery software efficiently restores files with long and localized names. This software is widely used by home users, office users, companies, government organizations, and business.
Pro Data Doctor
Pro Data Doctor features advance functionally to recovery files from memory cards, USB media and any data loss by Linux and Apple Macintosh or Mac OS X operating systems.
Pro Data Doctor is the company working worldwide and offering data recovery software for windows file system. This reliable company provides best software for recovering all lost deleted, missing and damaged data from the infected disk drives.
The Pro Data Doctor Pvt. Ltd helps users and Companies to preserve their data and computing environments and in case of losing any data restores it with the help of the best data recovery software solutions.
Pro Data Doctor Software is popular among the top companies and corporate world. The Pro Data Doctor Company has experienced data recovery specialists, developers, consultants who answer all the customers’ needs and requirements.
Easy to work with, having no risks windows recovery software can be installed on Windows XP, Windows Vista, Windows 7, Windows Server 2010, Windows Server 2008, Windows Server 2003 and higher versions.
Pro Data Doctor offers pen drive file restoration, digital picture and password recovery, flash drive recovery and xd card data recovery.
Journaling file systems
The risk of logical damage can be reduced by using NTFS 5.0, ext3, and XFS which are often called journaling file systems. A journaling file system writes down the changes that will be made in a journal (a circular log in a special area of the file system) before committing them to the main file system. These file systems can always be “rolled back” to a consistent state. The only data probably to be lost is what was in the drive’s cache at the time of the system failure. In case of system crashes or power failure, journal file systems are less likely to become corrupted.
When a system crash occurs, the recovery process involves reading the journal from the file system and replaying changes from this journal until the file system is consistent again. The changes are indivisible that means that they succeed or are skipped due to the fact of not completed yet (or written) to the journal before the crash occurred.
Some journaling file systems can enlarge the size of the journal or make it shrink, some of them put the journal in a contiguous area or a hidden file that is ensure not to change size while the file system is mounted.
Some journaling file systems allow external journals on a separate device, such as a solid-state disk or battery-backed non-volatile RAM.
Still regular system maintenance should include the use of a consistency checker. This checker can protect against bugs in the file system software and latent incompatibilities in the design of the storage hardware. Using disk controllers equipped with a battery backup will help to write the waiting data when the power failure occurs. It is also advised by specialists to provide the entire system with a battery backup that will help to keep the system on when power failures occur, or at least to give enough time to shut down properly.
Tips to Recover Lost Data
The common reasons that causes loss of data can be: human errors such as: when recycle bin is emptied or when keys Shift+Delete are used for file deleting, formatted drives, and hard disk crashes, sometimes it can be due to some circumstances such as:
- Virus corrupted partitions;
- Power failure;
- System sabotage.
Here are some tips to recover your lost data:
- Find good and reliable data recovery software. Do not purchase any software if the recovery process is not very difficult. You can download it from the Internet, or ask someone who has knowledge in this sphere to help you recover lost data.
- If the hard drive is in good condition, recover data using certain software. If the drive failed, try to consult a professional or expert.
- Download and install the data recovery software in a slave drive or any portable drive. It helps in the recovery of lost data, as there are practically no chances of overwriting. If the server failed, do not recover the lost data on the same server.
- Do not use system utilities (De-fragmentation), and volume repair utilities.
There is a variety of data recovery softwares in the Internet and on the market, still only the real can protect your data by maintaining a reliable backup system. The backup system required to be regularly tested and all the necessary data should be updated on this system on a regular basis. If any hard drive crashes occur, the whole data can be recovered at once without any complications.
Hard Drive Repair and Recovery
The data loss may be caused due to a physical hard drive crash or a non physical (logical damage). The physical damage can be a result of a failing of hard drive like a head crash or damage of other components and logical crash is due to deletion, formatting or a virus attack. However the mechanical and the electronic processes are interconnected, and damage may be a combination of both.
When hard drive crashes occur, recovering of lost data is necessary. Sometimes data recovery is especially vital for a company or an individual. To recover lost data can be done with the help of many different software programs, available on the market or in the Internet, from where they can be downloaded. Advanced software programs are recommended for recovering lost data in highly complicated cases.
These software programs can recover 100 percent of the lost data, simply because the data is not really lost when some system crash takes place or erased when a user deletes it. The data is stored at different locations on the hard disk, in a binary format of 0′s and 1′s. The deleted or lost data remains on the hard drive, until it is overwritten by something new.
The recovery technique of the electronic damage is easier, than the cases when physical defect happens. It is much more difficult to recover the complete data. Before downloading or purchasing data recovery software you should know that some software programs support only certain file systems, so remember it when choosing a recovery program for your computer or other device.
Typical Data Problems
The most common data recovery involves OS failure (on a single-disk, single-OS system), that means copying all wanted files to another disk. Move the files from the system disk to the backup media with a file manager or disc authoring software. Consider storing valuable data files (or copies of them) on a different partition from the replaceable OS system files, this saves all the necessary data from being damaged completely and provides extra protection.
In case of disk- level failure, disk partition or hard disk failure, the data cannot be easily read. The methods to improve the situation can be: repairing the file system, partition table or master boot record. Hard disk recovery techniques can also help to solve the problem – the corrupted data may be recovered by means of software repair programs, in some cases, however, only hardware replacement of a physically damaged disk can help. Recovering data from physically-damaged hardware can demand using several techniques, for instance, replacing parts in the hard disk can make the disk usable. A specialized disk-imaging process recovers every readable bit from the surface in case of logical damage.
One more typical problem occurs when files have been deleted from a storage place. Deleted files do not disappear immediately- only references to them in the directory structure are erased. The original files may be restored with the help of some programs.
Techniques For File System Repair
There are lots of repair programs to correct inconsistencies in the file system. Microsoft Windows uses chkdsk, Mac OS X has Disk Utility, and Linux provides the fsck utility.
These programs use two main techniques. The first technique is consistency checking, it scans the logical structure of the disk and checks to make sure that it is consistent with its specification. Such programs as chkdsk and fsck work in this way.
However, this technique has two problems. First, if the file system is greatly damaged, the consistency check can end in complete failure and the repair program may also fail or it may not recognize the drive as having a valid file system at all.
The second problem that can appear is the disregard for data files. If chkdsk finds a data file to be out of its place, it may delete the file without asking. The program works so to make the operating run smoother, without consideration about how important the files can be.
The second technique for file system repair is to accept the state of the file system, and by taking every indication of undamaged file system structures, rebuild the file system. This technique means scanning the entire drive and then making note of all file system structures and possible file boundaries, then trying to match what was located to the specifications of a working file system. This technique is slower than consistency checking, but recovers data even when the logical structures are almost completely destroyed. It does not repair the underlying file system, but makes it possible to extract data from file system to another storage device.
Still these two techniques are not the remedy from data loss, when trying to repair logical damage. Such file systems as NTFS 5.0, ext3, and XFS can reduce the data loss by taking to a consistent state, and the only data to be lost is what was in the drive’s cache at the time of the system failure. Nevertheless, regular system maintenance should include the use of a consistency checker to prevent against bugs in the file system software and data loss.
Non-Physical Damage To The Hard Drive
Logical damage to a file system occurs more often than physical damage. Logical damage is mainly caused by power outages that make file system structures from being incompletely written to the storage medium. Hardware and drivers problems and system crashes can result in logical damage too.
This causes the inconsistent state of the file system including: infinitely recursing directories, drives reporting negative amounts of free space, system crashes, or an actual loss of data.
Main reasons for logical damage include:
- Corrupted Partition Tables
- Corrupted File Allocation Tables (FAT)
- Deleted Files
- Virus Attacks
- Corrupted Master File Tables (MFT)
- Formatted Drives
There are different programs to correct these inconsistencies, and practically all operating systems come with repair tools for their native file systems. Linux has the fsck utility, Mac OS X has Disk Utility and Microsoft Windows provides chkdsk.
Sometimes some logical damages can be mistakenly thought to be physical damages. If a hard drive’s read or write head begins to click and make irregular noise, users can connect it with physical damage.
Hard Disk Data Recovery – Physical Damage
The reasons for physical damage to the hard drive may be different; you can diagnose your hard drive for existence of any of these reasons:
1. Mechanical failure, clicking noise can occur and provoke data loss.
2. Liquids like water, coffee flooded can spoil hard drive.
3. Electrical failure.
4. Failure in arrangement of Read or Write Heads.
5. Read and Write Heads Crashes.
6. The BIOS (basic input/output system) does not recognize hard drive.
7. Burned chips on the logic board of the hard drive.
8. Failed motors.
9. Settled dust between the platter and the heads.
These reasons can cause physical damage to storage media. Physical damage can result in some data loss, and moreover the logical damage accompanies the physical damage.
Physical damage should not be solved by the users themselves; a specialist in data recovery can diagnose your hard drive and give expert answers to your difficulties.
Data recovery is the process of recovering data from damaged, failed, corrupted storage media – hard disk, RAID drives, tapes, laptops or notebooks and personal computers -when it cannot be accessed normally.
The storage device can be physically damaged (data losses caused by power surges, static electricity, lightning strikes, natural disasters, viruses, hardware malfunctions, accidents) and there can happen user errors (logical damage, files deleted or formatted).
This site provides you with information on different methods of data recovery, new techniques in hard drive data recovery, flash and SSD data recovery.
The reviews on latest recovery tools and technology allow you to recover data from hard drive suffering from any critical data loss condition.