Data Recovery basic principles, data recovery tool for windows 7,windows 8,windows XP,server 2003/2008,2000 and NT

Data Recovery basic principles. Data Recovery tool for windows 7,windows 8,windows XP,server 2003/2008,2000 and NT

Not write the new file to the target partition, easy to understand from the concept, but actually do is not so easy. Because Windows will generate some temporary files in various districts more or less, plus startup automatically scans the partition function, if set incorrectly or operating slightly do not pay attention, may have been written to the new file and you do not know.

Can learn from the hard disk of the data structure, a file is saved to the hard disk, the file name, size, and create time corresponding information needs to be written in the directory area free area to save the file, and then find out in the data area, and then the first data area a cluster is written to the directory area, fill out the complete FAT table.
While a file is deleted from the hard disk, the first character of the file in the directory area just to "E5" and rewrite the second sector of the boot sector, said the size of the space used by the partition corresponding information can be . The file in the data area of the information is not deleted, and only at the next save other documents is directly overwritten.
Similarly, a hard disk is partitioned, formatted, nor will the data directly from the DATA area deleted, but to use partitioning software to re-establish the hard disk partition table, formatting commands to re-establish the FAT table.
To sum up in the actual operation, delete the file, and re-partition and quick format (Format will not increase the U parameter), fast low grid, reforming hard disk defect list, will not consider the data from the data area of the physical sector Actual erased. Delete files is to erase the address information of the file in the list, the file data itself is still in its original place; re-partition and quick format just to re-construct the new partition table and sector information, the same will not affect the original The physical presence of the data in the sector, until the new data to cover them; fast low-level formatting, and quickly use the DM software initialization information rewritable disk, heads, cylinders, sectors, etc. still the data is not erased from the original sector.
Therefore, these operations cause the loss of data, generally can be restored. The general result of the above operation data loss, recover data by purely data recovery software to recover (such as EasyRecovery FinaI the Data, etc.).
The hard disk has not moved, you need to use the soft hardware combination to restore. Can be damaged by hard disk installed after removing another of the same type hard to read the data of the removed disk. Also, the hard disk can be removed to put a clean bench, and then scanned with a laser beam on the disc surface. These instruments is such scanning, the entire hard disk of the original signal recorded with the instrument inside the computer, and then through a dedicated analysis software for data recovery.
You can find more information at: http://www.diskgetor.com/index.htm

Data Recovery basic principles. Data Recovery tool for windows 7,windows 8,windows XP,server 2003/2008,2000 and NT

Data Recovery

Hard Disk Data Recovery

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Partition Recovery