In B-trees, keys are combined into blocks containing several of them, which helps to considerably increase their effectiveness on disk storage devices.

If some elements of this chain are removed, there are chances that the data recovery tool won’t be able to find the path to your data.

That is why the data is stored in its leaves, and in order to access the information, a data recovery tool has to go down the chain of links before restoring any data. Blocks allocated for extension of B-trees.Information on allocated and free inodes.The Allocation Group is divided into four kinds of structures: The Allocation Group zero (together with superblock zero) are located at the beginning of the disk. Allocation Group structureĪt least the first two kilobytes of every Allocation Group have the same format. It can restore lost archives just as good as files of any other format.The size, number and other characteristics of Allocation Groups are found in the superblock, and this block is located at the beginning of every Allocation Group (just as it is in Ext2). So what can be done if you lost some data, and it was archived in different formats? Can it be restored? Restoring files from any existing archive format is an easy task for the well-known data recovery tool, Hetman Partition Recovery. That is, files are often stored in an archived format, as compressed folders or archives. Often, people also use archivers for convenience of transporting files or sending data by email, for encryption of password protection of folders in order to secure data or reduce opportunities for unauthorized access.

Restoring archived files and foldersĪrchiving files is a popular way to compress them into archives in order to save hard disk or removable drive space.

On the contrary, we wanted to demonstrate that there are free alternatives to them as well. In this article, we never attempted to diminish the role of WinZIP and WinRAR, the two leading products in the archiver market. The interface is not too impressive, but it’s a free tool, after all.

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