Miscellaneous
When working on a PC, or performing maintenance operations, it is not uncommon to accidentally delete files that are required. Fortunately, the data isn’t necessarily lost, as there are some recovery methods that exist.
Physically, your data is not exactly deleted. Not for the moment anyway, but if you install a new program, create new files or defragment your hard drive, then your recovery chances will be severely compromised.
As we explained in the Diskepper 2007 Pro Premier test, when you save data to a partition, all the files are stored one after the other. When a file is then “deleted”, a free space is created on this same partition. This will then need to be filled when adding new data files. This is why it is preferable to avoid all saving or maintenance operations on the driver, until you have attempted the data recovery.
Once the recycle bin is empty, the data only appears to be deleted
To be more precise, your data no longer appears on your hard drive or partition (the system marks the data as if it was physically deleted), but it is still present on the hard drive and simply not referenced in the file table (Master File Table for NTFS partitions, or File Allocation Table for Fat 16/32 systems). In this case we are talking about “deleted data”.
But when we are talking about data that isn’t referenced on the file data table, like when the computer is rebooted, or a partition formatted, then there is a good chance the data is lost. This is because it is no longer possible to determine the exact location of the deleted data via the file table, and you would therefore need to analyze the partition or possibly even the whole drive if the partition has been removed.
And this is the important difference when talking about recovery tools, and if what differentiates between them.
As we explained in the Diskepper 2007 Pro Premier test, when you save data to a partition, all the files are stored one after the other. When a file is then “deleted”, a free space is created on this same partition. This will then need to be filled when adding new data files. This is why it is preferable to avoid all saving or maintenance operations on the driver, until you have attempted the data recovery.
Once the recycle bin is empty, the data only appears to be deleted
To be more precise, your data no longer appears on your hard drive or partition (the system marks the data as if it was physically deleted), but it is still present on the hard drive and simply not referenced in the file table (Master File Table for NTFS partitions, or File Allocation Table for Fat 16/32 systems). In this case we are talking about “deleted data”.
And this is the important difference when talking about recovery tools, and if what differentiates between them.
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| Presentation on the openSuSE distribution | Acronis Disk Director Suite test |
June 18th, 2013 - 10:05 PM ET
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