data recovery freewareData Recovery Freeware is effective in restoring most “lost” or deleted files. Data recovery freeware warns you when recovering data, that any write operation can overwrite deleted files for good. So, don’t write anything to data drive, don’t run any disk utilities such as chkdsk and defragmenters, and don’t reboot computer.

Data loss can be caused by power surges and outages, static electricity, lightning strikes, fires, floods, other natural disasters, sabotage, viruses, equipment malfunctions, accidents, and user error (deleted files, formatted / f-disked drives).

There are many excellent data recovery freeware applications. The majority of these are designed to access the disk through an operating system, in which case you will need to have your affected drive transferred to another computer, or at least have a separate drive with a new OS on your original system. These programs generally use the virtual recovery technique, which involves creating an image of the disk to be restored in memory and then transferring files from that image to an alternate hard disk.

The number one data recovery rule is to not write anything more to the affected hard drive. This rule stands true for any situation. If you have deleted a partition by accident, do not create another partition, just leave it blank. If you have deleted files from the recycling bin that you realize you need, do not (if possible) save anything to the drive. The reason for this is that hard drives do not actually erase anything, not data or partitions.

When you erase a file from the operating system, it is just marked on the drive as having been deleted. When the system needs to store more data on the drive, it will consider files on the drive marked “deleted” as being empty space, and copy over them. If that happens then you’re in big trouble.

The same rule applies twice over for partitions since partition information just presents the operating system with a way of addressing the space available on the drive. If you wipe out a partition everything from it will seem to be gone. So if there is no partition information, no data can be read by the operating system. This does not mean that your data it is not there however, only that you can’t see it. Data-recovery programs have no such handicap.

Operating systems consider deleted files as just free space on the drive, so with any write operations to that partition or disk here is always the probability of loosing these files forever by overwriting them. Therefore it’s not recommended to restore files or an image into the same partition. In case of recovering a physical drive you must recover and save the information to another physical hard drive.

Data recovery freeware will usually work on data loss that is not caused by physical damage to the hardware, but logical damage to a file system. Logical damage is primarily caused by power outages that prevent file system structures from being completely written to the storage medium. The result is that the file system is left in an inconsistent state. This can cause a variety of problems, such as strange behavior such as, drives reporting negative amounts of free space), system crashes, or an actual loss of data.

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