How to Fix SanDisk Cruzer Not Recognized Issue

When SanDisk Cruzer flash drive or USB drive becomes unrecognized on the computer, you won't be able to access saved data on the device. To resolve this issue without losing data, you can change USB port, update USB driver to make it recognized again, and use EaseUS file recovery software to restore your lost files with ease.

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usb device not recognized

What to do when SanDisk Cruzer is not recognized by PC

Here are some basic tips to protect your data when your SanDisk Cruzer can't be recognized by your PC: 

  • Stop using SanDisk Cruzer, don't save or input new data.
  • Clear virus and malware on computer and storage device.
  • Make sure SanDisk Cruzer is properly connected to PC.

When your SanDisk Cruzer flash drive, external hard drive, USB drive, SD card or other storage devices cannot be recognized or deleted by the computer, just follow the solutions below to resolve this issue and recover your data. 

Part 1. Fix SanDisk Cruzer is not recognized issue

There are 3 major methods that can help you fix the SanDisk Cruzer USB not recognized or not detected issue. You should understand that the further you go, the harder but more effective the method becomes. 

Method 1. Change USB port or computer, reconnect SanDisk Cruzer (1 minute)

When SanDisk Cruzer or other brands of USB, external hard drive or USB first becomes unrecognized, you can try the tips here for a quick fix:

  • Step 1: Change USB port and reconnect SanDisk Cruzer on PC.
  • If the system still warns with unrecognized error, go to Step 2.
  • Step 2: Connect USB to another computer.
  • Step 3: Check if SanDisk Cruzer is recognized.

After this, you can open Windows Explorer and Disk Management to see if the USB shows up. If it shows up but not accessible, click the link - USB detected but not accessible to find a reliable solution. If not, move to Method 2 and Method 3 for hep.

Method 2. Run device troubleshooter (2-3 minutes)

When a USB device not recognized, you can run the Windows built-in troubleshooter to check and fix the error on your USB drive.

  • Step 1: Connect the not recognized Cruzer USB to your PC.
  • Step 2: Go to Settings by right-clicking Windows icon and choose "Settings".
  • Step 3: Click "Troubleshoot", scroll down to choose "Hardware and Devices".
  • Troubleshoot hardware and devices

Then the troubleshooter will run to detect and fix your USB device. After that, go to see whether the "USB device not recognized" issue has been resolved.

Method 3. Update or reinstall Cruzer USB driver (3-5 minutes)

When the USB driver is outdated, Windows computer may not be able to detect or recognize the device. Follow tips here to resolve this issue immediately:

# 1. Update SanDisk Cruzer USB driver

  • Step 1: Connect Cruzer USB to PC, right-click on This PC/My Computer, select "Manage".
  • Step 2: Click "Device Manager" and expand "Disk drivers".
  • Step 3: Right-click on the SanDisk Cruzer USB or portable device, select "Update driver".
  • Update USB driver.
  • Step 4: Click "Automatically search for driver software online" and wait for the process to complete.

Afterward, you can try to reconnect your USB drive to PC and check whether the USB drive shows up or not.

# 2. Reinstall SanDisk Cruzer USB drive 

  • Step 1: Connect Cruzer USB to PC, right-click on This PC/My Computer, select "Manage".
  • Step 2: Click "Device Manager" and expand "Disk drivers".
  • Step 3: Right-click on the SanDisk Cruzer USB or portable device, select "Uninstall device". Click "OK" to confirm the removal.
  • Fix SanDisk Cruzer not recognized by uninstall driver.
  • Step 4: Restart the computer and reconnect the USB to the PC. After Windows restarts, the USB driver will be automatically installed. 

After this, you can reconnect the USB to your PC and check the saved data. If you still can't access the save data, a wise choice is to restore data from SanDisk Cruzer first.

Part 2. Restore data from SanDisk Cruzer

Most professional data recovery software can scan and restore data from inaccessible storage devices.

We recommend you to try EaseUS Data Recovery Wizard which allows you to scan and find important data from a variety of storage devices including the SanDisk Cruzer, Toshiba USB drive, Seagate external hard drive or Samsung SD card etc.

Follow these steps to restore your SanDisk Cruzer data now:

Step 1. Run USB data recovery software.

Connect the USB flash drive to your computer and launch EaseUS USB data recovery software on your PC. Select your USB drive which marks as a removable disk, and click "Scan" to start finding your lost files.

Select USB to scan and find lost files

Step 2. Scan all lost files from USB.

EaseUS Data Recovery Wizard will thoroughly scan your USB flash drive and find all your lost data on it. After the scanning process,  use the Filter feature to filter a specific file type. You can check and preview found USB files in this program.

Scan USB drive to find lost files

Step 3. Restore all lost files from USB.

A double-click will allow you to preview the file results. Choose the target files and click "Recover" to save them to a secure location on your PC or other external storage devices.

Restore lost USB data

Part 3. Format SanDisk Cruzer to FAT32

To make sure no further problem occurs to your USB device, the last operation is to format SanDisk Cruzer, changing its file system to FAT32.

Here we'd like to guide you to format it into FAT32 with Disk Management:

  • Step 1: Connect the USB to PC and right-click on This PC/My Computer, select "Manage".
  • Step 2: Click "Disk Management", locate and right-click SanDisk Cruzer, then choose "Format".
  • Step 3: Select FAT32 as the file system that you want to set to the USB device.
  • format the sd card to ntfs with the build in tool

After this, you can continue using the device and saving files on the device again.

To sum up, when your external hard drive, USB or SD card can't be recognized by PC, follow solutions on this page to repair it. If you are unable to access the saved data, EaseUS Data Recovery Wizard is always available to help. 

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Updated by Tracy King

Tracy joined in EaseUS in 2013 and has been working with EaseUS content team for over 7 years. Being enthusiastic in computing and technology, she writes tech how-to articles and share technical solutions about Windows & Mac data recovery, file/system backup and recovery, partition management and iOS/Android data recovery.

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