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How to Repair Flash Drive and Recover Data


A USB flash drive is similar to a hard drive which stores all the data in its memory.  But there are many issues that can make the USB drive become inaccessible. This article will help you repair the USB without losing data. 

Why is flash drive not working or unrecognized?

A USB drive just likes any other data storage devices that has the possibility of being corruption or physically damaged. Its issues can be boiled down to two categories of errors, logical one and physical one. The logical mistake can be corrected while physical one cannot be solved without professional knowledge. If physical mistakes occurs, the only solution is to seek the help of professionals.
When the flash drives unrecognized, This is very tricky! While the error and damage rate of flash drives, in general, are comparatively low. The fact is that when they are damaged for some reasons, a good solution is required to retrieve data from them. Don't worry, even if you have no idea about how to repair a corrupted USB flash drive without formatting or losing data. 
On this page, we will introduce you an amazing data recovery software which can help you to recover lost data from unrecognized flash drive.

The best flash drive recovery software

Bitwar Data Recovery is the best flash drive recovery software since it is compatible with all devices including digital camera, hard drives, SD cards, Memory cards, phones, media players and portable drives. Therefore, you can restore audios, videos, pictures, archives, compressed files, documents, etc. Moreover, this program allows you preview files before recovering them.

How to recover data from the unrecognized flash drive?

Download and install Bitwar Data Recovery and then launch the software. Then connect the unrecognized flash drive to the computer.

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Step 1. Select your device that the type contains "raw" and then click "Next."

repair flash drive
Step 2. Choose "Quick Scan" to scan the lost data from flash drive first. If it cannot get back the lost data which you want, you need to select "Deep Scan" to scan one more time.

fix flash drive
Step 3. Select all types of file and then click "Scan."

Step 4. Double-click to preview the files and hit "Recover."

fix flash drive
Tips: Please do not recover the photos, images, documents, video, audio, archive files to the same flash drive, or it will cause permanent data loss.

Ways to repair corrupted flash drive

1. Try another USB port or PC

If your flash drive not showing up on the PC, the problem is not necessarily caused by the flash drive itself. The USB port and the computer may go wrong. You can unplug your drive and insert it into another USB port, or insert it to other PC.

2. Run Windows' repair tool for removable disk

     1. Open "This PC" and find your USB drive.
     2. Right-click your drive and open "Properties."
     3. Click on the "Tools" tab on the top.
     4. Click "Check Now" button (or "Rebuild" button if your system is Windows 10).
     5. Select both options: "Automatically fix file system errors" and "Scan for and attempt recovery of bad sectors."
     6. Click "Start".

 3. Enable USB device and assign a drive letter

This way is effective when the system reminds you of the undetectable drive. Right-click Start and click "Device Manager" (Or go to Start> Control Panel> Device Manager or Right click My Computer/ This PC >>Click Manage>>Click Device Manager on the left side.)
      1. Expand the list: Disk drives.
      2. Right-click your drive and enable it.
      3. External Disk in Device Manager
      4. After enabling, you also need to assign this drive letter:
      5. Right click My Computer/This PC >>Click Manage >>Click Storage>Disk Management.
      6. Right-click your flash drive and select the option to "Change Drive Letter and Paths."
      7. In the pop-up window, click "change." Assign any available drive letter to the USB drive by clicking it.

4. Reinstall the drivers

It is possible that the drivers that run your flash drive are corrupted before the system recognizes the drive. Therefore, you should try reinstalling the drivers.
      1. Right-click "My Computer/This PC" and open "Manage."
      2. Click "Device Manager" on the left side.
      3. Expand the option of "Disk drives."
      4. Right-click the name of your drive, click "uninstall" and click "OK."

fix flash drive
Eject your flash drive safely and restart your PC. Then see whether your flash drive can be detected and recognized.

5. Format corrupted pen drive

      1. Open "This PC/Computer" > Find the RAW partition (corrupted Pen Drive),
      2. Right-click it by choosing Format > Select the file system – FAT32 and rename it,
      3. Click Start > OK.
After this, your pen drive has been converted to fat32. Then, you can reuse it again, such as save files to this new disk.


You can try the above solutions one by one to exclude the possible problem or solve it. However, keep in mind that if you need to format or repair the flash drive, you need to recover the data before doing so. If the USB drive is still unreadable after trying every solution, it means that your pen drive has been physically damaged.

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