A striking example of how you can lose important information was the situation in which you found yourself. After printing text files outside the house, my flash drive “caught” a virus, along with which I passed it on to another person. When launched on his computer, naturally, the antivirus worked and cleaned the device, but the flash drive still had to be formatted. And of course, at that moment there were photos on it that I did not have time to copy, as well as important documents, videos and a folder with installation files some programs that were needed.

Naturally, I needed some kind of data recovery program and after searching the Internet, I accidentally found Hetman Partition Recovery - a utility that, despite the apparent complexity of the process, helps to understand how to recover a hard drive.

Hetman Partition Recovery works with FAT and NTFS file systems of any type and is compatible with all modern Windows versions, and also has minimal system requirements, which allows you to install the utility even on the weakest computer. At the same time, it works not only with deleted files, but can also directly restore the structure of the storage medium.

This program has a simple interface that allows you to recover lost files without any special skills or thorough knowledge of the computer, that is, it is perfect for the average user. When you start the program, you just need to follow the instructions of the recovery wizard, which in an accessible form explains step by step what actions you need to perform to restore all the necessary data.

So, let's take a closer look at the functionality of the program and figure out how to use it.

This program uses a convenient installer and, moreover, weighs very little, which allows you to quickly install it and quickly restore it. However, during installation, remember that if you plan to search for files that were deleted from specific drive computer, you need to install it on another one.

Fast media scanning

So, the utility is installed, the shortcut is located on the desktop, and it’s time to try to perform data recovery. How to do this?

As stated above, when I launched the utility, the first thing I saw was the File Recovery Wizard window, which appears automatically, but this function can be disabled.

This is my first time using this program and I don’t quite understand what needs to be done, so I’ll use the services of a wizard. After clicking the “Next” button, a list of all computer drives, as well as removable media that are currently connected, appears.

That being said, Quick Scan is good for recovering recently deleted files, so without really stopping to think about it, I choose it.

After analysis is completed

I click “Finish” and see a window that consists of several parts: on the left side all available disks are displayed, and the middle and right ones display the file recovery process. The folder “In-Depth Analysis” is also located here.

after clicking on which the following window appeared:

which allows you to specify which files to look for during the analysis. To do this, you can leave the “All files” system mark or switch to “Selected file types,” which allows you to select the file format to be restored.

I tick the required types files and click “OK”

As you can see in the lower right part of the window, the program performs a search and displays the found files in the middle part. It takes some time to display all found files, depending on their number and size, so let's wait.

So, the utility found and displayed 11 files that look like folders with extensions depending on their format.

If you go to any of the folders, you can see a list of files, the names of which, however, differ from the originals.

At the next stage, you need to select which files from the total number found are to be restored. To do this, you can select them and “drag” them to the “Recovery List” individually or all together, or you can click on each file separately right click mouse, selecting “Add to restore”.

The final picture looks like this

After clicking the “Recover” button under the list of files, a window appears that allows you to select a method for saving the recovered files. At the same time, they can be saved on HDD, and burn it to CD/DVD or create an image.

I selected the default option “Save to hard drive” and clicked “Next”. The following window appears in which you need to specify the path to save the files.

Files have been restored to the previously specified folder.

Restoring my files, which are not that many, took 2 minutes, after which I saw this window

I click “Finish” and go to the hard drive to check the files. Of course, their names have changed, but you can always open them and rename them.

All my lost files were successfully restored and the program can be completed.

Full drive analysis

However, there are times when a quick scan is not able to find the entire volume of lost files, so let's look at the "Full Analysis". Getting started with the assistant follows the same principle, however, at the stage of selecting the type of analysis, you should select “Full analysis” and leave the required checkbox.

The disk space of the selected drive is analyzed.

After completing the analysis, I saw this picture

I click “Finish” and see the following window, which displays all found files

Then I decide which files need to be restored and, using a similar principle with “Quick Scan,” I “drag” them to the appropriate part of the window.

I click “Restore”, specify the save path and wait

Of course, restoring files with a full analysis takes a little longer, and this process took me about 4 minutes. After completion, I click “Finish” and “go” to the appropriate folder to check the files. Since I selected both folders, the overall picture looks like this:

After completing the search, you can rename files and folders with their previous names and use the necessary information as if no one deleted it from the flash drive.

“Nafanya, everything is gone! Everything is lost!" Perhaps expressed in different words, but thoughts of similar content have probably occurred at least once in the lives of many users. They were associated with data loss. Accidentally deleted important files or folders bypassing the Recycle Bin? I had to format the partition hard drive? When connected, a flash drive does not want to show its valuable contents and urgently requires formatting for further work? Such situations are not uncommon, but we should not fall into despair prematurely when we have, for example, such a program in our arsenal.

It is developed and supported by Hetman Software. She is far from new to this market. Hetman Software products are in demand in different parts of the world, so it has offices in Ukraine, Russia, the USA and Canada, and the official website additionally has German and Spanish localization.

Hetman Software's arsenal of data recovery tools is very diverse. So, you can purchase complex utilities (Hetman Data Recovery Pack or Hetman Partition Recovery), cheaper versions for working exclusively with certain file systems (Hetman NTFS Recovery or Hetman FAT Recovery) or even more affordable versions for working with a specific type of file (Hetman Photo Recovery, Hetman Office Recover, Hetman Excel Recovery and Hetman Word Recovery). All of them allow you to recover information lost when formatting or deleting a drive partition, a system or hardware failure, failure of the device itself, a virus attack, accidental emptying of the Recycle Bin, or direct deletion from the media bypassing the Recycle Bin. It supports internal and external hard drives, memory cards, USB flash drives, inner memory devices (tablets, smartphones, MP3 players, etc.), SSD drives, as well as NAS systems and RAID arrays. You can clearly evaluate all the functionality of the different versions and see their cost by following this link. There is also a 50% discount on Hetman Software products until March 31. You can read more about this in the official news at this link. In the meantime, we will move on to detailed review Hetman Partition Recovery programs.

Interface and functionality

Immediately after launch, we are greeted by the File Recovery Wizard, which offers step-by-step instructions to recover lost files. It will run every time you start the program, unless you uncheck the “Display wizard at startup” checkbox at the bottom of the window. For now, let’s close it and carefully go through the Hetman Partition Recovery interface.

The program has a comfortable, spacious and high-quality appearance with the possibility of partial personalization. The central place is occupied by a window with a list of all drives used in the system. It displays partitions of internal drives, connected flash drives or memory cards, and even internal drives of connected external devices. Their full size, used space and file system. If you connect a flash drive or other media with damaged file structure, which is not displayed at all in the My Computer window, then here it will be listed as “Unallocated area” with the designation of the full volume, which will make it easy to identify required device and begin the data recovery process.

Below is the Disk Manager. The above information about drive partitions is duplicated here, with the only difference being that all partitions are grouped relative to their physical disk. For example, the test system used a WDC WD5000AAD HDD, divided into three disks (Unallocated area, Local disk D and Local Disk E), ADATA SP900 SSD with two partitions (System Reserved Area and System disk C) etc.

As you can see, the sizes of the areas themselves in the interface are not strictly fixed, so they can be adjusted to the desired dimensions or completely closed for more convenient use.

On the left is a disk tree that allows you to quickly navigate through directories. It will be especially useful after scanning a certain partition for the presence of deleted files, when Hetman Partition Recovery finds a number of folders and files. It is with the help of the disk tree that it is easy and simple to navigate through the structure, viewing the found data.

On the right side is the File Preview and Recovery List window. The first will be useful for visually identifying a file when its name doesn’t mean anything to you (for example, you need to find a specific photo from those saved on a flash card). At the same time, you can view not only picture files, but also any found documents: PDF, XLS, MP3, DOC, RTF, ZIP and others.

The second window is used if you do not want to restore all files, but only some of them. Here you can sort files by name, type or size (in ascending or descending order), as well as change the viewing mode (large icons, regular icons, list, table, tile).

On the right side, above the designated windows, there is a row of icons that allow you to perform the following actions:

• change the file display format (page thumbnail, large icons, list, table, etc.);
• filter the list of displayed files (existing, deleted, both categories);
• show or hide the Preview window;
• show or hide the Recovery List window;
• search files;
• display HTML help file.

To the left is address bar and navigation buttons (Back, Forward, Recent Pages, and Up One Level).

At the very top there are call buttons key functions: File Recovery Wizard and Saving Found File Wizard. There are also buttons for creating and mounting a real disk image, closing the disk image and going to the community of users of Hetman Software products in various in social networks(Facebook, Twitter, Google+ and VK).

At the very top is the traditional menu bar, which includes five items: “File”, “Edit”, “View”, “Tools” and “Help”. Many of the points duplicate the functionality discussed above, but there are also a number additional features that will be useful to users. Let's take a closer look at the available functionality.

So, the main options for recovering files are concentrated in the “File” menu. The “Wizard” item (“hot keys” − + [M]) launches the File Recovery Wizard, which we will get to know a little later. “Restore” ( + [R]) allows you to launch the Wizard for saving all found files, and the item “Restore from the list” ( +

If you scanned required disk to search for deleted files, but you don’t have enough time for detailed analysis and restoration of the necessary elements now, then you can save the analysis information to a file, and later load it and restore the necessary objects.

The “Find disks” item (+ [P]) allows you to scan the selected media for the presence of deleted partitions with different file systems. If you know exactly where the deleted partition was located, then you can scan only a specific area on the media. After scanning, all found partitions will be added to the disk tree on the left side of the main program window, which will allow you to easily interact with their contents.

The item “Create a virtual disk” ( + [N]) can be very useful. It allows you to instantly create a virtual copy of all or part of a specific media in order to continue searching and restoring data from it. This feature provides two important benefits. Firstly, you will protect yourself from accidental overwriting of deleted files, because all operations will be carried out on an exact copy. Secondly, you will be able to restore data to the same physical media, which is impossible if it is directly scanned. For example, your system uses only one drive that is not divided into disks. If you scan it for deleted files, you will need to restore it to another drive (flash drive, optical media etc.). If you use the function of creating a virtual disk, you can restore to the same drive, which is very convenient and useful.

Another interesting option is the “HEX editor” ( + [H]), which allows you to view the contents of files, partitions or physical disks. It is intended for experts and advanced users. Here they can quickly go to the desired line or sector of the drive, view the contents in HEX or text form using different encodings.

In the "Properties" item you can view more detailed information about a specific physical media. For example, find out its size, file system type, number of physical sectors, number of bytes in one sector, sectors in one cluster, etc.

In the Edit menu, you can select the entire contents of the active section or folder, invert the selection, or activate the file search function.

The View menu helps you personalize appearance programs: configure which toolbars are displayed ( Preview, Recovery List, Disk Manager and others), designate the display mode of files and directories (page thumbnail, large icons, list, table and others), sort elements, and also change the localization language.

There are a total of ten available languages, including Russian and Ukrainian. Slavic localizations are done very competently and accurately, so there are no problems with understanding the functionality by designation.

In the “Service” menu, the main items are “Save disk” and “Mount disk”. They do not have “hot keys”, since these same buttons are additionally located on the toolbar.

The “Save Disk” function allows you to create an exact image of a specific disk or part of it, so that you can then load it into the program using the “Mount disk” option and analyze it to find deleted files. The differences between the “Create virtual disk” item from the “File” menu lie in the fact that the created real disk image can then be transferred, copied and transferred, but you can interact with the virtual disk only on this computer without the possibility of transportation.

The “Help” menu offers to view the help file, go to official page For feedback contact support, visit Hetman Software community sites on social networks, or view information about the current version of the program.

Main functionality

To activate the main function of the Hetman Partition Recovery program, searching for deleted or lost files, you should use the File Recovery Wizard. It can be called from the “File” menu item or through the “Wizard” button on the toolbar.

By clicking the “Next” button, we go to the window for selecting the required disk to scan. Here you can mount a previously saved real disk image or use the search function for a disk on a specific physical medium.

After selecting the required media, a window opens in front of us with a choice of the type of analysis: “Quick scan” or “Full analysis”. Note that this window opens immediately if you click on any of the drive partitions in the disk tree.

The first type of scanning is carried out instantly, but not all files can be detected. The second type allows you to activate the deep analysis function for a more thorough examination of the selected drive section. This significantly increases the efficiency of the program, but the analysis itself will require some time (in our case, approximately 10 minutes).

Clicking the “Next” button starts the analysis process. Note that Hetman Partition Recovery uses several different algorithms at once (analysis of the file table and its copy, signature search and reconstruction of the file table) to improve the efficiency of its work.

After completing the analysis procedure, you can proceed to saving files. To do this, you just need to click on the “Restore” button on the toolbar or use the “Restore” item from the “File” menu. The Wizard window that appears will immediately suggest a method for saving data: to a drive, burning to CD/DVD, creating an ISO image, or transferring files via FTP. If you check the “Remember my choice” checkbox, then in the future the program will immediately use the specified method.

If you replace the standard method, you should go to the “Tools” menu and find the “Program Settings” item. Then, in the “Wizard” tab, uncheck “Remember recovery method”, which will again return to the initial window of the File Saving Wizard.

If “Save to hard drive” is selected, you can then specify the desired folder to save the data. Moreover, it does not have to be located on the hard drive, but can be stored, for example, on a removable USB drive.

Selecting “Burn to CD/DVD” opens a dialog box for burning optical media.

The ability to save found files using an ISO image or transfer them via an FTP server also left no questions. There are all the necessary settings for this functionality to work correctly.

Testing

To test the capabilities of the Hetman Partition Recovery program, a special test set was prepared. It included three folders, each of which contained different types files: PDF (10), DOC (10), RTF (10), ZIP (4), XLS (10), JPG (10), PNG (10), MP3 (10) and MP4 (1). There are a total of 75 files in each folder, giving a total of 225 files. The test system consists of the following components:

The flash drive was pre-formatted with complete data clearing so that previous files could not affect the test results. The testing itself was carried out in two modes: “Recovery of deleted files” (which were deleted bypassing the recycle bin) and “Data recovery after disk formatting” (standard quick formatting disk using Windows OS). In both cases, a full scan was used, which took up to 10 minutes. The process of restoring found files took approximately the same amount of time.

The results of the analysis and recovery are summarized in the following table:

As you can see, Hetman Partition Recovery coped with the recovery of all deleted files without any problems (100% result) and was able to recover files that were lost after formatting the disk almost perfectly (with 90% result). However, we note that the indicated indicators are not maximum or permanent for the indicated file types. Thus, in another test set, the recovery percentage of, for example, DOC files may be even higher.

It’s nice to highlight that Hetman Partition Recovery was able to not only recover deleted files, but also preserve the directory structure. That is, all files were placed in their own directories. Having a deeper and larger folder tree will save you the time of re-cataloging the recovered items.

When restoring files after formatting, most of them were sorted by the program itself by file type (JPEG, PNG, PDF and others) and were located in the “$Deep Analysis” folder. An additional part was located in shared folder“$Deleted and Found.” It had several folders with arbitrary names in which the necessary files were stored.

conclusions

This is the end of our acquaintance with interesting and useful software, which can very effectively and quickly relieve you of headaches and save your nerve cells in case of accidental deletion of important data.

First of all, let’s highlight the very friendly, comfortable and spacious GUI with high-quality Russian and Ukrainian localizations and support for hot keys. It provides fast access to the pledged functionality, while allowing you to configure your view to suit the user’s personal preferences.

In addition to the basic functionality of searching and recovering deleted files, Hetman Partition Recovery offers the use of a HEX editor, the function of creating a virtual disk or a real disk image, as well as the ability to search for deleted partitions on drives. You can save found files not only on external drive or connected media, they can also be burned to CD/DVD, created from them as an image file, or transferred via FTP.

The program is universal, that is, it can work with several types of file systems (FAT / NTFS) and restore Various types files ( office documents, multimedia data, archives, etc.). It supports a variety of media, including memory cards, flash drives, RAID arrays and internal drives various devices(for example, MP3 player or smartphone). And thanks to the use of various algorithms (analysis of the file table and its copy, signature search and reconstruction of the file table), high efficiency is achieved (in our case, 100% of deleted files and 90% of files lost as a result of formatting were correctly recovered).

The only drawback for some users may be the paid status of Hetman Partition Recovery. But here everyone decides for himself what is more valuable to him: the lost files or the required amount. Let us only note that the developers offer less functional versions of the program at a more affordable cost. A complete list of them and a list of their capabilities can be found at this link. In addition, Hetman Software does not offer to buy a pig in a poke: you can download the program you like for free, in which almost all the functionality is available, with the exception of the ability to restore files. That is, you can scan the desired disk to search for deleted or lost files and evaluate the effectiveness of the work. If the result suits you, then you can purchase a license and restore all found data.

We express our gratitude to Hetman Software for providing a copy of the program.

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Recover data from a deleted or damaged partition and even completely restore the structure and everything contents of hard disk after formatting is now within the power of everyone. Use the RS Partition Recovery program and restore lost information instantly in full.

Screenshots of the program

RS Partition Recovery

Screenshots for RS Partition Recovery will help you appreciate the simplicity and ease of working with this software. So, download and install RS Partition Recovery to get started on recovering your lost data. Please note that the software cannot be installed on the disk or partition that contained the information being recovered.

After installing the software, in the main program window, select the drive from which you want to recover files. If the program needs to scan large amounts of information, it may take some time.

In the window that appears, select the required analysis type. In most cases, a quick scan will be enough - the bulk of the lost information will be restored almost instantly. In case of extensive damage to the file system, it is advisable to perform a full system analysis.

After scanning the specified disks, all files found on them will be displayed in a window with standard interface"Conductor". By selecting the required folder, you can view its contents. Deleted files and folders will be marked with a special red cross.

To set specific search parameters for deleted files or to find and recover only some of the lost documents, you can use the search form through the Edit-Search menu.

If you have deleted any data from a disk but are unable to restore it immediately, you can create and save a virtual image of the current disk.

This will allow you to work with the partition that contained important information, in normal mode, without fear that information from it cannot be restored due to files newly saved in the partition. Use the “Restore Disk” function and in the window that opens, specify the parameters for creating a disk image. Later, using the “Add disk” button, you can open the saved disk image and, adding it to the general list, work with it as with an existing one.

To save the necessary data, use the “Restore” button (or the corresponding menu item). In the “Save Files” wizard window, select one of the methods for saving recovered files. It is better if the data is not saved on the same disk from which the recovery takes place.

Select a data recovery program - Hetman Partition Recovery, FinalData Standard, GetDataBack

We sometimes don't think about the information that is stored on hard drives computer, memory cards or flash drives. And this all happens until the moment when she disappears. At this time, it may turn out that there were memorable and expensive photos, important data and files, programs and other information that could be very useful. Sources and copies of documents stored somewhere else can save the situation, but what to do if all the information existed in a single copy?How to recover deleted hard drive partitions?

It is situations like this that make you look for various programs data recovery, which will help you return information from a randomly formatted flash drive, after a program failure or a host of other reasons that can destroy large amounts of necessary data.

In this review, we will try to evaluate the work of three utilities: Hetman Partition Recovery, GetDataBack and FinalData Standard, which are among the most popular.

GetDataBack

GetDataBack is stated in the description as a powerful utility for recovering deleted, lost or damaged information regardless of whether it was formatted, there was a problem with the program, or physical damage. In addition, it means that the program has minimum system requirements and can work with all modern versions of Windows. It is also stated that it has an intuitive interface, which we will check further. This is shareware software, which may require a key to operate.

The program exists for file NTFS systems and FAT, and each works exclusively with its own type of file system, so if you want to restore a hard drive or flash drive, you need to download the appropriate software, which is also very inconvenient.

So, the installation of the program is complete and it should be noted that in search Russian version Quite a lot of time was spent, which is not suitable for everyone, because sometimes information needs to be restored very quickly, and in this case the user faces certain problems.

After launching the program, you need to select a data loss scenario to optimize the operation of the utility. We select “File system loss”, because the flash drive was accidentally formatted.

After the search is completed, it displays detailed information O file system

However, at this stage regular user Significant problems may arise, because all the files have names different from the original ones, and the “intuitive interface” turned out to be not very clear. However, through trial and error, it was all possible to start the process of copying the recovered files to drive D.

The process has completed and the folder with the saved data should contain all the designated files. We “go” to drive D and see a set of folders (about 250 pieces) with incomprehensible names, each of which contains individual files, the origin and purpose of which is completely unclear. Of all the recovered data, you can select several separate files, the functions of which can only be guessed from the icons.

Summary of working with the program: after recovering files, it is impossible to determine either the volume or quality of information, since it is placed under different names in many folders, which are very difficult to understand.

The functionality of this utility can be given the most unsatisfactory rating, because the “intuitive” interface required a lot of time to understand the principle of operation, and the quality of the work performed can only be assessed by a person who has quite a lot of knowledge about all the intricacies of working with computer programs. It is worth noting that despite the Russified version of the program, the instructions on English language will not be understood simple user, which means the chances of getting the job done become even less.

Final Data Standard

FinalData Standard is intended to restore information deleted by mistake by the user or damaged as a result of an unexpected situation. The program is lightweight and works with all types of Windows. However, it is listed as shareware and does not have a Russian language. There were also problems with searching for a localizer, so let's look at how the utility works and try to understand its English version.

After launch the program looks like this

Based on basic computer knowledge, we find the “Open” button, after clicking on it a window appears in which you need to select the desired disk

Select drive F and see the following window

which also does not add clarity to the process of working with the program, so we just click “OK” and we probably see the process of scanning the disk, where by the way the time is indicated as 14 minutes

Indeed, scanning takes a lot of time, which is unacceptable for many users, because it often happens that files need to be recovered very quickly. As indicated by the program, 14 minutes were spent, after which this information appeared

Again, we intuitively determine that we need to select all the necessary files and click “Recover”. The process of saving data to your hard drive in the selected folder takes some time, but after that you can be sure of the quality of the search. The program “found” the deleted files and saved them in accordance with how they were previously located on the flash drive, that is, by date.

There is no doubt about the effectiveness of this program, but the search speed leaves much to be desired.

Hetman Partition Recovery

On the official website of the developer of this software, in the description of the software it is stated that it has minimum requirements and works with all modern versions of Windows. In addition, it is also indicated here that the utility recovers data from hard drives and external drives, as well as other devices that are managed by FAT and NTFS file programs.

However, let's run the program and check the quality of its work.

So, the program was successfully installed and launched without any problems. In addition, the functionality provides for the Russian language and there is no need to spend quite a long time searching for a localization tool.

The novice user is provided with the “services” of the File Recovery Wizard, which helps to understand the operating principle of the program and the sequence of actions.

Within a few seconds, the search is completed and after the appropriate clicks on the “Next” and “Finish” buttons, we see the following field

Click “OK” and watch the process of searching for files, which by the way took quite a bit of time

All folders displayed in the working field must be selected and moved to the right side of the working field, and then click “Restore”. Then the program prompts you to select a file recovery method

After all the necessary manipulations with the buttons and choice of location, you can observe the process of saving files. After completing this stage, click “Finish” and check for the presence of files in the corresponding folder

This utility also provides a full analysis, which takes a little more time. This type of analysis has the same sequence of actions and is able to restore lost information in full and save it to a specified disk.

Based on the results of working with this program, we can say that Hetman Partition Recovery shows the best results, searching and restoring files does not take much time, and the interface is extremely clear even to the most inexperienced user.

So, after comparing all three programs, we can conclude that the last utility of the three compared has optimal performance and is suitable for use in any situation, especially when there is a need to urgently recover lost data.

In principle, it is possible, you must first understand how files are stored on the hard drive and how exactly Windows image handles the file deletion procedure. Although we are sure that most of our readers have an idea about this process, we will still briefly talk about it.

The contents of files are stored in the form of bytes recorded on sectors of the hard disk. Sectors can be located either sequentially, one after another, or randomly scattered throughout the logical partition. The location of the sectors depends on which blocks were free when the file was saved to disk. If the system does not find a contiguous free block of sectors on the disk of sufficient size to store the file as a continuous sequence of data, the system will fragment the file, writing its individual parts into free blocks.

To navigate in the order of recorded information, the operating system creates an entry in the file table indicating which sectors on the disk are occupied by the contents of a particular file.

The moment a user deletes a file, the data is not erased or overwritten on the disk. The contents of a file entry in the file table are modified. The file system driver marks the entry as belonging to the remote file. Accordingly, all sectors on the disk belonging to this file, are considered free - Windows can now save some other file into this space. But until this happens, you can try to restore the contents of the deleted file.

How Hetman Partition Recovery works

The program combines a set of algorithms for data recovery. Hetman Partition Recovery can solve the following problems: accidental file deletion (“Shift” + “Del”), data loss after emptying the Recycle Bin, formatting or deleting logical partitions, virus attack, failure operating system etc. The utility supports file FAT systems, NTFS and recovers information from a hard drive, memory card, USB flash drive.

Hetman Partition Recovery scans the file table looking for file entries marked as deleted. By analyzing such records, you can find out the exact addresses of the sectors on the disk into which the contents were written original file. After a quick additional check to see if these sectors belong to any other file, the program reads the data from the required sectors and saves them in a new file.

What happens if there is no entry left in the file system pointing to deleted file? A different approach is required - “restoring files by content”.

The headers of many file types contain characteristic sequences of characters. For example, files in JPEG format contain the character sequence “JFIF”, ZIP archives begin with the characters "PK" and PDF documents begin with the characters "%PDF-".

To restore a file, it is not enough to find its beginning; you also need to determine its end. The end of the file can be found by knowing the size and address of the beginning of the file. The file size is determined either by analyzing the header (ZIP, JPEG, AVI, etc.) or by reading and analyzing the disk sectors immediately following the header.

This is far from full list algorithms used by Hetman Partition Recovery. By analyzing various structures (even partially damaged ones), the program collects all possible information together and displays the contents of the recovered files to the user.

The video below shows a short presentation describing the principles of operation of the Hetman Partition Recovery utility.