Recover information on hard disk. How to recover data from a damaged hard drive
- File system is damaged
- Hard disk is not detected at all
- Hard disk is detected but not working
- When missing files can be recovered
- When not to do the restoration yourself
- The four most important rules for recovering information
Depending on the reason why the data became inaccessible, various measures should be taken to restore the information on the faulty hard disk. The most likely reasons why a molten disc no longer appears correctly are as follows.
File system is damaged
A common situation is when HDD Windows detects and can be accessed, but you do not see any data on it, or a message appears stating that you must format it. This means that its file system is damaged. The solution to this problem is good software to recover files. You can try several options, the most famous such application is Recover My Files. The free demo version of this program will not allow you to fully utilize the functionality, but will display data that can be restored. Thus, if you see that the contents of your disk can be returned, you can pay for the full version of the application and complete the process.
However, this software has its drawbacks. If the file type is not contained in the program settings list, such data cannot be restored in principle. Although the list of available extensions is quite wide, and you can find data deleted even a few years ago. Remember that the software must be loaded from a flash drive or other portable media.
The Recover My Files program will not allow you to save the recovered files on the same hard disk that is being scanned. Therefore, you must pre-connect a USB flash drive or portable external hard drive.
Hard disk is not detected at all
If the computer does not detect the hard disk at all or it doesn’t even turn on, the problem may be related to a board failure hard drive . You can replace this component yourself. A new fee can be purchased at many online stores, however, before you buy, pay attention to specifications and the type of firmware - this data can be very different.
The cost of a hard disk card can be quite high. It is much more profitable to purchase a used hard drive with a working board and rearrange it yourself.
Hard disk is detected but not working
If Windows detects a hard disk, but you cannot access it or format it, it is likely that the contacts on the board are dirty. Usually, when this happens, you can hear the so-called "deadly noise." To solve this problem, try the following: remove the main board from the bottom of the hard drive and clean the bottom pins.
One of the main brain centers of each computer can be considered a hard disk. Thanks to him, we can memorize information and store it, regardless of its nature. But, like any other mechanical device, the hard drive is subject to wear and the risk of other negative effects: viruses, hackers, power surges, hardware failures, user errors, which certainly leads to loss of information stored on the computer. And then many users may be faced with the question: how to recover data from a hard disk? Next, we will consider several ways to do this, they can be used in different situations, and also use them as additions to each other.
How to recover data from hard disk?
The simplest type of data recovery is to access backup files. However, this is possible only if they were previously created, as well as in the absence of significant failures in the drive. Once some data loss has been detected, you must turn off the computer from the network. In general, it is worth relying on a special automatic program in the matter of creating backups. If they were not created in advance, then you should not despair at all. When deleting data on disk sectors, information about files is saved, and if they are not overwritten, the data can be restored by creating a full copy of the disk and using the special Live CD utility. It is important to note that at the moment the most common method of data recovery is the use of various kinds of software, but this method can hardly be called the most effective. Utilities are not always able to recover data efficiently and correctly. This is especially difficult given to the user who has little experience with them. Sometimes with the help of such programs can only be applied after which it will be impossible to correct the situation.
If you are concerned about how to recover data from a hard disk in case it was lost due to a malfunction in terms of hardware, then only mechanical manual intervention is required. Such a procedure may be useful in case of damage to the disk surface. This part consists of a thin layer of crystals, some of which may crumble with time. The magnetic layer is sometimes damaged due to the incorrect operation of the drive head. All these devices need to be repaired for data recovery, as well as to prevent their further loss. This is a difficult and painstaking work.
Recovering data is a more complicated procedure in case of damage by spyware or malware. With such an attack, you must immediately create backup copy and also stop working with the computer. The data can then be restored by referring to the file table. Information on the hard drive can be under threat due to errors in its boot sector. Sometimes, because of this, the computer does not even recognize. But even here there is an easy way to recover: you will need to boot the computer from another medium, after which access to the information will be open. You can even recover deleted photos.
Often the loss of information is associated with damage file system . In this case, you will identify the problem by incomprehensible characters appearing on the screen when you try to open the file. And here it is important not to write anything to disk. Data may be permanently lost due to any information entered.
Answering the question of how to recover data from a hard disk, it is worth noting that it is more correct to try to prevent any losses and related problems than to seek a solution.
The loss of information stored on the hard disk (HDD) is a sad event, but most often it is not fatal. Accidentally deleted documents, folders and even entire sections can be restored, if nothing happened that could prevent this.
How to recover data from a hard disk, in what cases it can be done independently and when it is better not to risk it, but to turn to specialists, we will tell further.
How to recover data from hard disk
When missing files can be recovered
The main condition for successful data recovery is the physical health of the hard disk.
Most likely, you will be able to return data that:
- were deleted, bypassing the Trash;
- destroyed by a virus;
- disappeared due to file system failure (such problems usually lose entire directories and partitions);
- were in a section that was formatted (formatting erases some information about the location of files on the hard drive, but they themselves remain in place).
But in what cases it will not be possible to recover information:
- if the hard drive area where the data was stored was overwritten (so, if you reinstall the operating system with the formatting of the volume, all objects of the old OS are irretrievably destroyed);
- if objects were deleted using a shredder program (shredders also overwrite the storage areas of objects to be deleted, and repeatedly);
- if the magnetic surface of the "pancakes" of the hard drive is damaged.
When not to do the restoration yourself
If there is no confidence in the drive, and the information is very valuable, it is better to refrain from experimenting and seek restoration in a specialized service. The service is not cheap, and experts work there are not omnipotent, so the less you torment the “sick” drive, the lower the price will be and the higher the chances of success.
The following symptoms indicate a malfunction of the hard drive:
- Unnatural noise at work (clang, clicks, clicking, whistling, etc.).
- HDD from time to time ceases to be determined by the computer - it disappears, then appears.
- The operating system is very slow, the hard disk is always 100% loaded without a high load on the RAM.
- When writing and reading files, various errors occur.
- On the failure of the drive informs operating system or programs that monitor the status of HDD in real time (if installed).
- The computer stops booting from the hard drive (provided that it is loaded normally from other media).
- Often occur " blue screens of death ", indicating errors that are characteristic of disk problems (INACCESSIBLE_BOOT_DEVICE, NTFS_FILE_SYSTEM, KERNEL_MODE_EXCEPTION_NOT_HANDLED).
The four most important rules for recovering information
How and with what help the data on hard drives is restored, I will tell you a little later, and now - a couple of words: what should I do before this and how to carry out the recovery procedure correctly?
- The recovered data can be dumped to another partition of the same hard drive or to a different physical medium, but not to the same place from which they were read. Therefore, if your HDD is not partitioned, prepare a USB flash drive or another hard disk of suitable capacity.
- As soon as you notice the loss of important data, stop all operations with HDD and immediately proceed to the restoration. This will avoid accidental overwriting.
- Try to restore everything you need in one session without stopping the program. Moreover, without restarting the computer.
- If one program did not help, use others until all the information has been recreated.
All important information stored on your hard drive. There are such situations when it can be lost: it is the failure of the disk itself, the wrong formatting of the wrong disk, other reasons. Recovering data in the case of formatting or accidental deletion is not difficult with special programs . If you have problems with the disc itself, then everything is a bit more complicated, but it is still possible to recover information on your own.
The first step is to carefully remove the hard drive from the system unit. To do this, you first need to turn off the computer, disconnect the power and remove the battery (if it is a laptop). Then you can remove the hard drive. Find out what interface and size your disk has and find the corresponding removable disk enclosure for it. After inserting your disk into the external case, fasten it securely there. Then you can connect it to a working computer via a USB port (the computer being used must be compatible with yours by parameters and used programs). After you boot up your computer, you should be notified that a new device is connected. It is also possible to automatically open the disc for viewing. If your disk is not detected either automatically or manually, then most likely the hard disk is seriously damaged, and you will have to contact a specialist.
Now, with the help of special data recovery programs (they can be downloaded on the Internet, they can be paid and free of charge), perform a disk scan. From the list of recovered files that appear, select the ones you need and save. Such programs as are considered effective and well-proven:
- PC Inspector File Recovery 4.1;
- Zero Assumption Recoveri (ZAR);
- Roadkil's Unstoppable Copier 2.2;
- BadCopy Pro v3.76;
- DeadDiscDoctor 1.0;
- File Salvage 2.0;
- Non-Stop Copy v1.03 and others.
Very often, the cause of file loss is damage to the main boot table - MBR. In this case, MBRTool or Active Partition Recoveri is suitable for data recovery - the programs will not only repair bad sectors, but also effectively reconstruct the MBR.
Do not forget to check the disk for bad sectors. Use hard drive maker software for this. You can restore bad sectors with the help of the dd_rescue program - it can restore the maximum of bad sectors of a hard disk.
If the hard disk damage is serious or you are not confident in your own strength, then it is better to immediately contact the specialists for information recovery and repair. The less wrong actions with damaged disc - the greater the likelihood of data recovery from it.
If you accidentally deleted the information you need from the computer's hard drive, this does not mean that you have completely lost it. Any file, even after formatting the hard disk, can be successfully restored. Especially if after its removal new information was not recorded on the hard disk. But even if time elapsed after deleting the files, and new files were recorded on the hard disk, chances for a successful recovery still remain. To restore the information you need a special program.
You will need
- - a computer running Windows;
- - Filerecovery application;
- - TuneUp Utilities program.
Recover lost data will help the application Filerecovery. Find this program on the Internet, download and install it on your computer. After installation, run it. In the left part of the main menu of the program you will see all sections and all hard drives that are installed on the computer. Mark the hard disk partition or directly the hard disk from which you want to recover information.
After the hard drive partition is marked, on the toolbar on the top select Quick scan. Starts the process of scanning a hard disk partition. Upon its completion, all found files in a list will be displayed in the program window. Select the files with the left mouse button, and in any part of the window where the found files are displayed, click the right mouse button. Will appear context menu in which click on the Recover command. All files will be restored.
If you need, for example, to restore not a large number of files, but only one, then this method is better for you. Download the program TuneUp Utilities from the Internet. There are its free trivial versions. Install and run the program. In the main menu, select the tab “Fix problems”, and then - “Restore deleted files ". Further in the window, mark the partition of the disk from which data will be restored.
In the next window, in the “Search criteria” line, enter the file name (approximate) and click “Next”. Wait for the process to search for files with the selected name. If the file is found, it will be displayed in the program window. Click on it right click mouse, then select "Restore". The file will be restored to its original folder. If the original folder has been deleted, then you have to choose which folder you want to restore the file to.