Many users neglect to safely remove flash drives, as a result of which the drives stop working correctly: they are not recognized by the system, require formatting, do not read/write data, show the wrong size (for example, 14 Gb instead of 16 Gb). If you are faced with a similar problem, then the question of how to restore a flash drive will probably become relevant to you.

Is it possible to restore the functionality of a flash drive?

Some may think that restoring a flash drive is a pointless exercise. Drives from Transcend, Kingston, A-Data and other manufacturers have flooded the market, making flash memory cheap. Memory cards and flash drives with capacities from 8 Gb to 32 Gb are not so expensive that you can’t easily throw them away and buy new media. However, old flash drives and Micro SD memory cards are usually not thrown away at all: they lie on the table and wait to be restored.

Recovery is possible if the flash drive or memory card has not completely “died” (usually death occurs when the controller burns out).

But if the drive is simply not detected or shows the wrong volume, then the reason for this behavior is most often a controller firmware failure. We will discuss in detail below how to restore a flash drive after such a failure.

Saving information and searching for the necessary software

If it is stored on a flash drive or SD card important information, then before flashing the firmware and restoring the controller (and with it the operability of the drive), it is necessary to extract the data. This can be done using the Photorec utility, which can work with media for which the file system is not detected.

After extracting the necessary information from the SD card or flash drive, you can begin searching for a utility for flashing the controller firmware. But to flash a controller, you first need to determine its model. To do this, we use the CheckUDisk utility (distributed free of charge) and the website flashboot.ru:

After completing the check and receiving the necessary information (VID PID of the drive), you need to download a utility to restore the functionality of the flash drive or SD drive. Go to flashboot.ru and open the “iFlash” tab. Here you need to enter the VID PID values ​​and find the desired manufacturer of the memory card or flash drive (HP, Generic Flash Disk, Protex, Oltramax, Smartbuy, etc.).

If your model of flash drive or SD memory card is in the database online service If not, then it’s okay: the main thing is that the VID PID and the manufacturer match. If the necessary data matches, then you need to obtain information about the exact model of the controller for flashing and restoring it, as well as the name of the appropriate utility.

The table has columns “Controller” and “Utility”. You also need to pay attention to the volume - the controllers of flash drives and SD cards for 16 Gb and 32 Gb may differ. You need to copy the full name of the utility and download it through the “Files” section on the flashboot.ru website or from another source. Often, along with the recovery program, instructions for its use are downloaded, which it is advisable to read carefully.

Controller firmware

Let's say you have a Protec flash drive with a capacity of 16 Gb. You find it by VID PID through the iFlash online service and download the controller firmware utility for free. What to do next? Carry out measures to restore the flash drive (SD memory card).

Universal instructions for restoring all flash drives:

If the firmware is successfully installed, you should see a positive status of the flash drive - “OK” or “Good”. If problems arise during the operation, an error code will appear: its explanation can be found in the help of the utility found by VID PID, or on other online services.

Restoring any flash drives (SD cards) is carried out approximately according to the same scheme, however, the instructions may differ slightly for different utilities: you need to find the program for flashing the controller using the VID PID and run USB recovery drive.

To restore a flash drive, you must additionally format it. You can do it standard means Windows or using special programs. It is recommended to run a full format rather than a quick format. This will take a little more time (especially if the storage capacity exceeds 16 Gb), but you will be sure that the flash drive is now completely clean and functional.

Hello!

Flash drive on this moment, this is one of the most popular types of storage media (except for the ability to share files over the network).

In fact, a USB flash drive has a lot of advantages: it is mobile (can be put in any pocket), universal (connects to any PC, laptop, gadget), copying/reading information from it is quite fast, etc.

But one small thing happens to them" problem“- sometimes the computer refuses to recognize and see it. There are quite a few reasons for the invisibility of a flash drive, in this article I want to give the most basic ones that I most often encounter in my work.

Also from the article you will learn what can be done to restore the functionality of your device (you shouldn’t always immediately throw it away and run to buy a new one?! 👣).

To help!

If you want to buy flash drives at bargain prices, I recommend using Chinese online stores:

Reasons for the invisibility of a flash drive

10 Main reasons and their solutions...

Problem #1: the flash drive is not formatted

This reason is the most common! The fact is that after purchasing a flash drive, you need to format it (very often new flash drives and disks are not formatted at all and therefore they are not visible in “My Computer/This Computer”...).

Solution

It is most likely pointless to go into “My Computer”, because... in some cases you won’t see a flash drive there.

Therefore you need to open "Disk Management" . To do this, press the button combination Win+R (The Run window should appear) , enter the command diskmgmt.msc and press Enter (screenshot below).

Remark! If your flash drive is not visible in Disk Management, proceed to the 3rd problem.

Find your flash drive in the list (guide by its size and name, for example, "Kingston...8 GB") , then click on it right mouse button and in the appeared context menu choose - " Format... " (example in the screenshot below) .

Actually, that's all. By the way, I recommend choosing NTFS as the file system (because on FAT 32, which is often the default on flash drives, it is impossible to copy and place files whose size exceeds 4 GB).

Problem #2: incorrect auto-installation of drive/flash drive letter

When you connect any disk drive, flash drive, floppy disk, etc. to your computer - it automatically assigns a unique drive letter to your drive, e.g. "System drive C:\" or " Local disk F:\", etc.

Everything would be fine, but sometimes the auto-installation of the letter fails and assigns a non-unique letter to your connected drive. As a result, the drive is not visible...

To solve this, you just need to try changing the letter (this is done quickly and very often solves the lion's share of problems).

Solution

You also need to go to "Disk Management" (how this is done is described above), then select your “invisible” drive, click on it right mouse button and select the function " Change drive letter or drive path ".

To help!

By the way, in some cases, Windows may not assign a drive letter to all connected drives at all. To fix this, use the following recommendations:

Problem #3: Outdated or broken drivers

A very, very common problem is outdated drivers (also sometimes drivers can fail and conflict with each other). It is worth noting that on older computers another problem is possible - the inability to see a flash drive whose size is more than 32 GB.

This can be solved in the following way: first remove the old drivers, then install new ones.

Solution

First of all, open the device manager, where you can see all the devices connected to the computer. To do this, open, then switch the view to "Large icons" and select "from the list" device Manager " (example in the screenshot below).

To help! Alternative ways to open Device Manager -

Note!

Devices that do not have drivers will display a yellow exclamation mark. In general, it is not advisable for you to have such devices marked with exclamation marks (or red crosses).

After uninstalling, click the "" button - it is located at the top of the Device Manager window. After which, your manager window will blink a couple of times, and the drivers will be reinstalled...

Problem #4: the front panel of the system unit is not connected

Very often, the USB ports on the front panel of the system unit are not connected to motherboard(apparently they forgot to connect this socket when assembling the PC). In this case, you simply insert the flash drive into a port to nowhere...

Solution

1. Quite simple: connect the flash drive to the back of the system unit - it always has 2÷4 USB ports. At the very least, it is recommended to do this simply for testing - to confirm that the USB ports on the front panel are not working.
2. Try connecting the front panel to the mat. board If you have never had such experience before, go into system unit I don’t recommend it, it’s better to use the services of service centers.

Problem #5: viruses on a PC or flash drive

Settings for enabling USB ports are usually located in the "Advanced" tab. On opposite point USB Controller need to convert the value to Enabled(i.e. enabled, see screenshot below). Then save the settings and exit (usually F10 key).

You can also just reset BIOS settings to optimal (USB ports are always included in them. At least I have not yet seen the opposite...).

Problem #8: error file system

In cases of file system failure - when you connect a flash drive, you will most likely see a message that the flash drive is not formatted, that it has a RAW file system and Windows will prompt you to do something with it 😊.

In some cases, formatting a flash drive cannot be completed due to some errors...

In general, the problem with the file system is quite “big”, and its solution is not always simple and quick (especially if the flash drive has the necessary data).

Solution

If the data on the flash drive is needed- I don’t recommend formatting it. In general, I advise you not to do anything with it, but take it to a service center. If you want to do everything yourself, then first try to remove your data from it using recovery utilities: Recuva, R.Saver, Easy Recovery Professional, etc.

To help!

How to recover photos from MicroSD cards memory or USB flash drive -

If the data on the flash drive is not needed (or you have already copied it): I recommend trying to format the flash drive using one special. utilities - HDD LLF Low Level Format Tool.

HDD LLF Low Level Format Tool

A simple utility for low-level formatting of disks and flash drives. In a number of cases, it helps to bring drives back to life, for which there was practically no hope left. By the way, it formats even those disks that Windows does not see or gives reading/formatting errors.

The utility works quite simply: after launching, it will present you with a list of all connected drives to the system, you select the one you need and format it. After formatting, the disk (or flash drive) starts working as it should!

Formatting a flash drive

To help!

How to format a flash drive (FAT32, exFAT, NTFS) -

Problem #9: USB port malfunction

It also happens that the USB port becomes unusable. Most often this happens due to frequent and careless use of it: for example, many people sharply pull the flash drive (or USB cable), over time the USB port begins to fit poorly to the inserted flash drive (i.e. there is no contact between the flash drive and the port). As a result, the flash drive is invisible.

Note. By the way, the USB port may not work stably: i.e. you will first see the flash drive, and after you start copying information onto it (or reading it) - you may see an error, or the connection will simply disappear...

Solution

1. Try connecting the flash drive to another USB port, or to another computer/laptop. If the problem is related to the USB port, you will immediately notice the difference...
2. I also recommend paying attention to dirt in the USB port. Often, over time, a layer of dust, plaque, etc. accumulates, which leads to poor contact. If there is a lot of dirt, try removing it with an old toothbrush dipped in alcohol. (perform the operation with the PC turned off!) , and then reinsert the flash drive.

Problem #10: USB flash drive malfunction (for example, after being dropped)

This is perhaps the worst thing that could happen to the drive, especially if it contains important data. Most often, the user guesses that the flash drive may have become unusable, because... before that:

• the drive fell to the floor;
• was dropped into water;
• accidentally touched or hit by any object;
• The drive shows deep scratches, chips or cracks.

In general, when you insert a flash drive into a USB port, the LED on it should light up (most flash drives have one). The characteristic sound of connecting the device should “ring” on the PC. If all this is missing, especially when connecting a flash drive to different devices– then this is a bad sign, most likely there is a problem with the flash drive itself.

Solution

1. Buy a new flash drive (banal and simple 😉, especially since the prices for them are now quite affordable (and they generally cost “pennies”));
2. Try taking it to a service center, maybe the technician will be able to resolder the contacts and it will work again (but I would recommend this method only for). After repairing the drive: using it for important data is not justified!

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.

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

The cause of problems with SD cards and flash drives may be Windows security policy. You need to find out whether access to removable drives (in whole or in part of writing data to them) is blocked 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 other USB ports, move on.

3. Windows Explorer

Standard formatting using 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, we 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 the context menu called on it, we launch formatting.

You can immediately select 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 a file RAW system. The latter means that either Windows environment does not understand the file system of the drive, or there is no file system 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 individual files located 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.

Read, what to do if Windows does not display the connected device. How to restore functionality to such a device if this is the reason. A flash drive or any other USB drive should be automatically detected by the computer and displayed in Explorer and the “This PC” folder after connecting to the USB port.

Diagnosis of the problem

The first thing you need to do if connected USB disk does not appear in the Windows file manager, you need to check the tool Disk Management.

To open Disk Management in Windows 8/10, right-click on the menu Start and select "Disk Management". In Windows 7, press the Windows key + R key combination to open the dialog box "Run" and enter the command in it diskmgmt.msc.

Check the list of drives in the window Disk Management and find the USB drive that is not detected. It should appear here even if it is not in the folder "This computer", and match in size. Sometimes it is defined as "Removable device", but not always.

If you do not see your disk or flash drive even in Disk Management, then try the following:

• Turn on the disk, if there is such a function. Some external hard drives have a separate power cable or are turned on using a separate key dedicated to this.
• Connect the device to another USB port. Disconnect the flash drive from this USB port and connect it to another. Perhaps one of the USB ports on your computer has failed.
• Connect the device to your computer without a USB hub. If the flash drive is connected to the computer via an extension cord or USB hub, try disconnecting it from it and connecting it directly to the computer. Perhaps the reason is in the hub.
• Try another computer. Connect the flash drive to the USB port of another computer and see if it is recognized by it. If the device is also not detected by another computer, then most likely the problem lies with it.

Solution

If the problem options described above do not apply to your case, then your problem can most likely be solved using one of the methods described below. Depending on what you find in Disk Management, there are options for solutions to the problem that has arisen with identifying an external storage medium.

If Windows sees the disk, but cannot read it, then this means that it has a file system that it does not support. In this case, the operating system will prompt you to format the disk before using it. But don't rush to do it! This will destroy all your data.

If other computers see the flash drive, but yours doesn’t

If other computers detect your USB drive, but yours does not, then most likely there is a problem with the device drivers.

To check this, open Device Manager and look for Disk devices And USB controllers . See if there are any devices marked in yellow in these sections exclamation point. If there is such a device, right-click on it and select Properties. The properties will contain information about the error and driver status.

To fix the driver problem, right-click on the device, select Properties / Driver / Update.

If the disk is visible in Disk Management

If the disc is visible in Disk Management, but it does not have a letter, then it is for this reason that it may not appear in Windows Explorer. In order for the system to start displaying it in Explorer, such a drive must be assigned a letter.

To do this, right-click on it and select "Change drive letter or drive path". If there is no such item in the pop-up menu, this may be due to the absence or unsupported file system type of the storage medium.

In the menu that opens, you will see that the drive does not have a letter assigned - assign it. To do this, select Add / / Ok.

If the disk is visible in Disk Management, but it is not allocated

If the disc is visible in Disk Management, but it is not distributed, which means that it is not formatted. In order for such a disk to become operational, right-click on it and select "Create Simple Volume".

Select the maximum suggested partition size and assign a drive letter suggested by the system. After this, the disk will be normally detected by the system and ready for use.

If the disk is visible in Disk Management but cannot be formatted

If for some reason the disk cannot be formatted, then to restore its functionality, you can completely erase it and then re-create the partition.

Note. As a result of such manipulation, all data from the disk (as well as flash drives or memory cards) will be permanently deleted. Therefore, worry about their safety in advance - scan the disk or flash drive using Hetman Partition Recovery, and save your data in a convenient place.

To clean the disk, open Command line as administrator and clear it with diskpart commands – "clean".

But before you do anything, think about how valuable the information is stored on it? If the data is important, then it would be better to try to recover it before and after the firmware. To do this, you can use the Recuva program, or another similar one. And if extremely important data is stored there, which is very important and valuable, then in this case it is better not to do anything on your own. Take the flash drive to a specialized service center, where specialists can restore it without such a high risk to your data.

Restoring a flash drive using the example of Kingston DT

In our example we will use a flash drive Kingston DataTraveler Elite 3.0 16GB. It worked fine for a while, but then strange things started to happen. When trying to delete or write data, the whole process is so slow that it can be said to not move at all. After reconnecting, the system displayed a message asking you to format the disk.

Considering the low importance of the data on the device, it was decided to format it. The formatting process took a long time long time and was not completed. Only a message appeared indicating that the formatting attempt was unsuccessful.

We connect our faulty flash drive and run the utility. At the top of the program window there will be a button to receive data, click on it. After this we will see all the information on the device. Pay attention to the values ​​next to VID and PID.

Reflash a faulty Kingston flash drive

For now we disconnect the drive. We launch the utility for flashing (our program is called MPTool.exe). If the application comes with a file called readme.txt, then look into it. Most likely there are instructions there. Please note that there are different utilities and everything may look slightly different for you. But in general, the interface and operating principle should be similar.

After starting the flashing program, you need to connect the flash drive again. After this, the utility will detect the device. Now all that remains is to click on the start button for rewriting the firmware. Let's wait a little until the process is completed.

Upon completion, the program will let you know that everything was successful.

Then a system message will immediately appear that before working with the device it needs to be formatted. But it’s better to immediately disconnect the flash drive and then connect it again. And only after that begin the formatting process. After completing all these procedures, you can check the operation of the flash drive. Everything works as quickly as it should and files are adequately copied and read. Do not forget that some steps may be slightly different from those described in this article. But in general the whole process looks exactly like this.

That's all. Take care of your flash drives and remove the device safely.

This might come in handy.