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How to Repair & Recover USB Flash Drive not Recognized or Detected

Updated on Nov 05, 2018 by Abby Haines to Resource

Summary:
Full solutions for you to recover USB flash drive not recognized error and repair USB flash drive not recognized/detected.

"My Sandisk USB flash drive is not recognized when I plug it into my laptop. Is there any way to fix USB flash drive not detected and restore the data. I have all my school work on it. Please help if you know any solutions."

The easiest way to fix "USB flash drive not detected" issue

USB flash drive, not recognized problem can occur in many situations. No matter for what reason(except for physical damage), you can try EaseUS file recovery software to restore your data and then repair the device by formatting for reuse. It is the easiest and most popular way to fix USB flash drive not recognized error without losing data. 

How to recover data from USB flash drive not recognized

Step 1. Plug the USB flash drive into your computer.

Please do not use your USB flash drive once you lose or delete files on it. The sooner you take actions to restore lost data, the bigger chance you'll have to restore all of them.

Step 2. Run EaseUS data recovery software and scan flash drive.

  • Launch EaseUS Data Recovery Wizard and choose your flash drive under External Devices.
  • Click Scan to start finding your flash drive files.
Scan flash drive.

Step 3. Check and preview found flash drive data.

You can double click to preview found files.

  • Delete Files: List your deleted files there.
  • Drive: It loads all the found data there.
  • Lost Partition Files: Check first if it's for formatted recovery.
  • Extra Files: Finds files that lost names or paths.
  • Filter: A quick way to your wanted files.
  • Search: e.g. File name/file extension.
Find lost flash drive files.

Step 4. Restore flash drive data.

  • After checking and finding lost flash drive files, select them and click Recover to restore.
  • Please save the found files into a safe location on your PC rather than to your flash drive.
Restore lost files from flash drive.

Video tutorial of EaseUS file recovery software

Other solutions to repair "USB flash drive not recognized" issue

If you don't want to fix the "USB flash drive not recognized" issue and recover the inaccessible data using third-party data recovery software, you can try the following solutions in different situations.

1. USB device is damaged physically

First, it will happen when the USB device is damaged physically. In this situation, it is quite difficult or we can even say it is impossible for you to fix the corrupted flash drive and perform USB data recovery. So, here we think a professional data recovery service might be a nice choice. 

2. The file system of the USB flash drive is corrupted or becomes RAW

File system corruption is one of the common reasons for USB flash drive not recognized issue. It usually occurs after a virus attack or abrupt removal. In this case, flash drive recovery is quite easy. Here, CMD, the best tool to fix corrupted file system of devices like hard drive, USB, SD card without data loss can do you a favor. For a detailed guide, please refer to how to fix a corrupted flash drive without formatting. And if the file system becomes raw and Windows reports disk not formatted error, you can try raw drive recovery solution to restore your data.

3. The drive letter assigned to the USB drive is occupied by another drive in the computer

Another reason for USB flash drive not detected issue is that the drive letter assigned to the USB drive is occupied by another drive on the computer. To solve this problem, you just need to try EaseUS free partition software to assign an unused drive letter to the USB flash drive. It will help you fix the "USB flash drive not recognized" issue and recover all the inaccessible data with ease. 

change drive letter to fix USB flash drive not recognized issue

4. USB Device Not Recognized Error message

If USB flash drive not recognized issue happens with the "USB Device Not Recognized" error, the flash drive is most likely failed. Here you can try Device Manager to fix the error. 

1. Connect the USB flash drive to the PC

2. Navigate Control Panel -> System -> Device Manager -> Disk drivers.

3. Find and select your USB device, right click and first choose "Uninstall" and then choose "Scan for hardware changes" to refresh the drivers.

After all the operations, you will find USB not recognized issue is fixed and the flash drive is detected.