What is a bad sector on an SD card? Bad sector on a flash drive, what is it? Programs for low-level formatting

Micro SD memory cards are quite popular due to their portability: you can use it in your phone, and if you insert it into an adapter, you can easily put it in your computer, digital camera and any other devices. Such memory cards are inexpensive, but they often break down. Micro SD suddenly stops responding and shows no data. In this case, do not rush to throw away the flash drive and buy another one, as you can restore it with the basic using Windows or third party programs. Bring your Micro SD flash drive back to life with the help of this article.

How to recover a Micro SD flash drive without third-party programs

The surest way and the first one that you should immediately take is to format the flash drive in Windows via external USB adapter. The thing is that built-in adapters for Micro SD do not always cope with their task; it is best to buy USB adapter for memory cards and use it or ask friends for a while.

Insert the USB flash drive into the adapter and then connect it to the computer. Wait until the device is detected by the system. It's okay if the type of flash drive is displayed incorrectly, because it is broken.

Click on it right click mouse and select “Format”.

Select formatting options:

The file system must be Fat32.
The cluster size is 32 KB.
Check the box next to “Quick Format”.

Click “Ok” and wait until the procedure is completed. Remove the device when finished and insert again.
Of course, after formatting, all files from the flash drive will be deleted, but, nevertheless, its performance may return to normal.

How to recover a Micro SD flash drive using the program

This option is suitable not only for restoring the functionality of a flash drive, but also for recovering files from it. Try this procedure after formatting to recover all photos and files.

Download the Card Recovery program on the official website at https://www.cardrecovery.com. Several options for one recovery program are available here different files and memory cards.

Please note that the program is distributed only in a trial version. You will have to pay for the full one.
Installation is quite simple and straightforward: agree with license agreement and select the program installation directory.

Immediately open the program via Start or a desktop shortcut. First of all, insert your memory card into your computer.

Click “Next” and you will see the next step. Here you need to select the drive letter on which the flash drive is currently located. Expand the first list and select it.

Once you set the device letter, in the bottom line set the path to save the recovered files. It is in this folder that all photographs and other documents will appear.

Click “Next” again to begin. If the program itself was unable to indicate the amount of memory on the device, write it down manually.

Confirm the restoration and click “Yes”.

Wait while the scan completes. During the process, all lost files will be found, as well as problems with the flash drive. As soon as the line is completely filled with green, the scanning was successful. In the lower window you will see everything that was recovered.

The program will tell you how many files were found.

Click “Next” to view them.

Check the boxes next to those that need to be restored. Click “Next” again. The recovery will take several minutes, depending on the capabilities of your computer.
Now you can again use the Micro SD flash drive and files recovered from it.

We choose the best programs for flash drive recovery. We tell you how to recover a USB flash drive and revive it using free utilities.

Flash drive – small device for storing information (documents, music, videos, files), convenient for carrying and connecting to a USB port, removing from a computer, laptop. It contains a controller and special chips that store information inside the microcircuits.

Sometimes we copy files and forget about them, and when we remember, we find that valuable files have either been erased or permanently deleted. Either the device is broken, you formatted the partitions. What can you do, often the digital flash drive (most often, the controller in it) breaks down, generates errors, the flash drive does not open on the PC - not even a month will pass. One day the flash drive may need to be restored. The reason for this may be:

incorrect, careless operation of the flash drive
incorrect formatting of the storage medium
low-quality flash drive, bought on the market or cheaply from a Chinese (probably by mistake)
physical or software failure of the flash drive (the most likely reason)
Also, the reason for inoperability can be an incorrectly removed flash drive from a computer or laptop. This happens when an impatient user literally rips the flash drive out of the USB slot while copying or transferring files.

There are many reasons when it is necessary to restore a flash drive that does not open on the computer or is recognized with read errors. Fortunately, today specialists from service centers They will help you return valuable files and restore the functionality of your device without any problems or errors. Recovery programs will return files safe and sound or at least partially restore data on a USB flash drive. The cost of the flash recovery procedure is not that little money, which makes you think about independent recovery USB flash drives. Alas, free utilities are not always useful.

Flash drives and SD memory cards are equally characterized by all the symptoms and consequences of removal digital information. This could be accidental erasure, unknowing or deliberate deletion of files from a USB drive, damage to the structure, physical or mechanical damage controller or memory chips... One way or another, restoring a flash drive and SD card is a more than relevant task for PC owners. Therefore, first of all, read the contents of this section.

The flash drive does not open: we study the symptoms of damage

In the recovery section, we will talk about the main problems associated with recovering information on flash and secure digital drives. As a rule, this is due to hardware or software damage to the flash drive - if it does not come off or is not recognized correctly. Sometimes the memory wears out, sometimes the controller fails. And the USB controller drivers have nothing to do with it. In some cases, you can solve the problem yourself and, as a result, save the files on a flash card or repair the chip or device, ignoring reading errors on the computer. Here are just some of the symptoms that indicate a drive failure:

The PC does not see the flash drive in the list of readable devices
The flash drive does not appear when connected to a laptop or computer (OS does not matter)
The flash drive is not readable: although the files can be seen on the USB drive

Help with the contents of the section "Recovering a flash drive" (Flash Recovery)

A small guide related to the question of how to find the reasons why the card does not work or the PC does not see the flash drive along with other drives (the device is not recognized, has problems being read, requires formatting, freezes, gives an error when copying to the card, etc.) flash drive -storage device. Diagnostics of malfunctions is important in such situations, because without identifying the disease, it is impossible to cure the patient, or even easily ruin his life, using the wrong tools, using the wrong methods and programs that can revive the drive. In this article, we analyze the causes of damage and possible symptoms that lead to the need to restore a flash drive, secure digital, controller, memory chip and flash card.
We try (with the help of instructions and utilities posted on the site) and at the same time qualitatively - how to solve problems with our own hands - fix a breakdown on the sd card, revive the controller, correctly format, solder the loose contact or memory chip, scan information and process bad sectors on flash "ke, sections with reading errors. However, the described methods require certain dexterity and experience in using the specified tools.
, if it does not open on your computer or does not display correctly. What is “VID&PID”, what does this abbreviation stand for and what to do when the device is not recognized or cannot be opened. Explanation of terminology, without which it is difficult to imagine recovery for flash drive, data and digital information on it.
- testing 5 good programs, each of which has remarkable features when working with memory or a drive chip.

Recovering USB flash drives and memory cards. Formatting utilities

One of the best ways resuscitation of the Jetflash flash card - reformat it again, at a low level. As a rule, such measures are taken when the flash drive is not readable. If possible, you should ask the memory manufacturer (say, A Data, Seagate, Transcend SD, Datatraveler, etc.) if they have proprietary utilities or fresh drivers for reconstruction. Scroll through the contents of this section for help and you will see several articles on the topic low level formatting drive. Fortunately, in the operating room Windows system 7 and higher there are tools for formatting a flash device without using third party applications computer. One such program for a flash drive is HP USB Disk Storege Format Tool.

Diagnostic formatting of a flash card in the program for recovering flash drives HP USB Disk Storege Format

Utility for recovering HDD flash drive Low Level Format Tool

Many people know that HDD program Regenerator is used to help revive hard drives(HDD), however, not many people know that it is also suitable for a device such as a flash drive. The essence of the program is the detection of bad bad sectors on the device with subsequent processing of the received information, depending on the controller and memory model, at a low access level via USB. As a result, you get a working device that can copy files without read and write errors. This greatly facilitates the recovery of flash drives if the computer does not see them. Program HDD Regenerator is equipped with recovery instructions, in addition, on the recovery website you can find instructions on using the utility and correct formatting (see via search). You can download the flash drive recovery program directly from the link posted on the page HDD review Regenerator"a.

Open and diagnose the problematic flash drive in the program HDD Low Level Format

By the way, in other sections on the Softdroid website you will find other programs for recovering flash drives (for example, Flash Recovery or JetFlash Recovery Tool), but we recommend that you first study all the information collected in this section. We hope that after the measures taken, the computer will see your flash drive.

Why don't you indicate the cost of the product before downloading the flash drive recovery program and installing it?

Answer. You can download all the mentioned flash drive recovery programs on the official website. Only reviews are published on Softdroid - we do not have the physical ability to update information about the cost of the products presented. When you download the trial version of the program, it is free. Next, see information about the cost from the developer, or at the end of the trial period you will receive a notification.

Ask us a question about flash drive recovery

The site's specialists will help you recover your data. You ask a question - we answer it for free (you will receive the answer by mail).

The issue may not be related to file recovery. The main requirement is to describe the problem in detail, formulate it in such a way that you don’t have to decipher your message.

Flash Drive Information Extractor – a program for obtaining information and diagnosing a USB flash drive

Information about the flash drive (model, manufacturer, firmware version) helps to better understand the device and its operating features. In turn, this allows you to diagnose, restore files or correct the operation of the device.

How to recover deleted files from a USB flash drive: step-by-step guide

One of the most pressing problems associated with deleting files relates to the flash drive. Let's talk about how to recover deleted files from a flash drive using the Unformat program. Which free software install on your computer which program, besides Unformat, is effective when working with a flash drive. The methods described below will be relevant for usb drives, memory cards, SD cards of digital cameras in the Windows OS environment. We will try to help you, even if the situation is difficult.

What to do if the computer does not see the USB flash drive? We solve problems and fix errors

If the file system of the memory card / USB flash drive is incompatible with the computer OS, the contents of this memory card will not be displayed when connected to a PC. Accordingly, you will not be able to work with the device until you correct the format. In addition, there are a number of other reasons why the computer does not display the USB flash drive (SD card) as separate disk in Explorer.

How to restore a flash drive with your own hands: instructions for owners of flash drives

In this article I want to tell you how to restore a flash drive: about all the available methods for restoring damaged, non-working, faulty, faulty USB drives. I offer the most full instructions which includes everything available methods, as well as programs that optimize flash drive recovery.

Do-it-yourself USB flash drive repair: troubleshooting hardware and software problems

What to do if the computer does not see the flash drive? We agree: this is a painful and frequently asked question. Another popular issue that flash drive owners face is repairs resulting from a breakdown. A USB drive has its own characteristics for repairing a controller, memory, or failed memory: in some cases, the storage device is not detected by the PC. What to do if the flash drive is not detected on any computer? This guide describes an operation to resuscitate an “invisible” flash drive for correct recognition on a computer.

Review of programs for restoring the functionality of a USB flash drive

Errors in USB operation Flash drives are not common. Almost all of them boil down to the inability to count or write necessary information into the device memory due to software corruption.

Specialized programs provided by device manufacturers will help you fix the problem and restore the memory card.

To restore the operation of noname flash drives and those that do not have their own recovery software, the Chkdsk built into Windows and the formatting system are suitable.

Choosing the best program to recover deleted files from a USB flash drive

Damaged your portable USB flash drive or memory card? These best-in-class programs will help you save and recover information, and here you will learn what is involved in recovering data from a flash drive. Applications include Undelete 360, CardRecovery, PhotoRec, Recuva Professional and other candidates. You will also learn how to revive a flash drive for each program.

EaseUS Data Recovery Wizard Free 11 – free data recovery program

EaseUS Data Recovery Wizard supports many SSD data deletion scenarios. We will launch the Recovery Wizard and explain in a step-by-step manner how the recovery is performed. IN free version Easeus Data Recovery Wizard Free has limitations, we will tell you more about them. Using the EaseUS Data Recovery Wizard program, you can recover files, deleted information from a formatted disk, laptop or removable devices like a flash drive or SD card.

Where to download PhotoRec for free (for Windows OS)

Free program PhotoRec is designed to recover multimedia data on HDDs, USB flash drives, SD cards and other storage devices. Feature overview PhotoRec recovery, scanning options. Where to download PhotoRec for Windows and other OS.

How to recover an SD card or USB flash drive if the computer does not see it, does not read or write data? Problems with flash drives are rarely caused by natural wear and tear. Most often, problems with them are caused by users ignoring the rules safe removal devices, experiments with various software in which these flash drives are involved, as well as their initially lousy quality. Below we will consider a list of possible actions carried out in the Windows environment that can solve the problem, unless, of course, the cause lies in a mechanical failure. And we, friends, will go from simple to complex.

Recovering SD cards and USB flash drives in Windows

Note: below we will only talk about restoring the functionality of flash drives, but not about saving the data stored on them. This is a separate topic, and there is something about this on the website; you can also use this program for. Most of the methods proposed below for recovering SD cards and flash drives will lead to the loss of their data.

1. Hardware lock

SD cards, MicroSD adapters and flash drives can be hardware protected from writing data or completely blocked even for reading. On such devices there is a lock switch, which must, accordingly, be set to the “Unlocked” position.

2. Problems not related to the drives themselves

Politics may be the cause of problems with SD cards and flash drives Windows security. You need to find out whether access to removable drives is blocked (in whole or in part of writing data to them) by the computer administrator. You also need to check the card reader or ports Computer USB. If everything is fine with the latter, the card reader reads other SD cards, but problems still arise with the flash drive, no matter how you connect it to others USB ports, go ahead.

3. Windows Explorer

Standard formatting tools Windows Explorer can help in simple cases such as unsuccessful writing of data to a flash drive. Or when for some reason a smartphone, tablet, camera or other device cannot cope with this operation regarding SD cards. In any of the current Windows versions In the Explorer window on the drive, call up the context menu and click “Format”.

We leave the original file system and first try a quick format.

If it fails, repeat the operation, but with full formatting (uncheck the fast box).

4. Windows Disk Management

You can try to perform the formatting procedure in disk management. To launch this tool, enter in the system search field:

diskmgmt.msc

In the disk management window, focusing on the size of the drive, we look for it among the disks connected to the computer. And in context menu, called on it, we start formatting.

You can choose right away full formatting.

If the flash drive has a partition structure like a hard drive, you must delete each of those partitions. This is done using the “Delete Volume” option in the context menu.

And then, in place of the resulting unallocated space, you need to create a single partition. To do this, in the context menu on this very unallocated space, launch the “Create a new volume” operation and follow the instructions of the step-by-step wizard.

5. Programs for low-level formatting

Standard formatting tools may not help in complex cases, for example, when flash drives are displayed (in the same Explorer or Disk Management) as unrecognized devices with the RAW file system. The latter means that either Windows environment does not understand the drive’s file system, or file system no as such in principle. Actually, this is what causes problems with a flash drive or SD card when it works on other devices, with other operating systems. In such cases, third-party Windows programs designed for so-called low-level formatting will help restore the flash drive.

In fact, low-level formatting is a procedure that is carried out either in the production conditions of flash device manufacturers, or in serious specialized services. Various types of Windows software that claim to perform this kind of operation actually perform a regular full format, but with mechanisms different from those that apply operating system. Such programs cope well with flash drive problems if these problems arise at the file system level. Let's look at two of these programs.

HDD Low Level Format Tool

http://hddguru.com/software/HDD-LLF-Low-Level-Format-Tool/

Shareware portable program HDD Low Level Format Tool can format different types storage media, in particular SD cards and USB flash drives. After unpacking the archive with the program, run it and agree to the license terms.

We choose free use.

Directly in the program window we indicate the problematic drive and click “Continue”.

We confirm the decision.

We wait for the operation to complete and check the operation of the media.

SDFormatter

http://flashboot.ru/files/file/355

A completely free small program called SDFormatter is another tool for so-called low-level formatting. Works with both SD cards and USB flash drives. Install SDFormatter into the system, launch it, and indicate the problematic flash drive in the “Drive” column. Click “Format”.

The program wants to make sure that our intentions are serious, click “Ok.

He asks not to touch the drive while the operation is being performed.

Upon completion, test the flash drive or SD card. If this does not help, repeat the operation with the settings for complete overwriting of sectors (nothing more than full formatting). Press “Option”, select “Full (OverWrite)”. And also click “Format” at the bottom.

If using the above methods it was not possible to revive the flash drive, and it is still under warranty, you need to stop at this stage. And do not take any further action except contact the seller with a request to replace the device. All the actions described below should be resorted to only when, in fact, there is nothing to lose. The instructions below apply to USB flash drives, SD and MicroSD cards. However, in the case of the latter, the likelihood of recovery is extremely low.

6. D-Soft Flash Doctor

D-Soft Flash Doctor performs so-called low-level formatting, and at the same time also detects damaged sectors (cells). Well, and, accordingly, knows how to block them and replace them with backup ones. The program can help when flash drives or SD cards have difficulty reading separate files that fell on damaged sectors. The program is free and portable. I did not find the official website, but it can be freely downloaded on the Internet.

In the D-Soft Flash Doctor window, the first thing you need to do is run a scan to detect errors.

In my case, there were no damaged (broken) sectors.

But if in your case, friends, the scan results are different and bad sectors are detected, we start the recovery process.

The window for performing this operation promises that the process will not last longer than 10 minutes, but in fact, reassigning bad sectors on a drive with a capacity larger than 4 GB can take quite a long time. So it is better to run the recovery operation at night.

7. Flashing the memory controller

Programs for so-called low-level formatting or their analogues, which in any other form claim to be able to resuscitate all types of SD cards and/or USB flash drives, turn out to be powerless in the event of a software failure of the controller, when it requires flashing. This problem can have different symptoms, but more often it is either the computer does not see the drive completely, or it sees it and can even read the data, but cannot format it by any means. In particular, due to write protection even though the drive is not locked by hardware.

How to recover an SD card or USB flash drive if the computer does not see it, does not read or write data? Problems with flash drives are rarely caused by natural wear and tear. More often, problems with them are caused by users ignoring the rules for safely removing the device, experiments with various software in which these flash drives are involved, as well as their initially lousy quality. Below we will consider a list of possible actions carried out in the Windows environment that can solve the problem, unless, of course, the cause lies in a mechanical failure. And we, friends, will go from simple to complex.