This article will assist you to fix SanDisk 128GB USB flash drive like Ultra series and Cruzer series that is not recognized on the computer in Windows 7/8/10 step by step.
By Teresa / Last Updated February 25, 2020
USB drives are important tools in transferring files as well as bootable devices in booting systems. However, USB drive is not recognized by Windows happens now and then. One user just complained that his SanDisk 128GB USB flash drive is not recognized on the computer in his Windows 7. The SanDisk USB works pretty well last week, yet it just no longer working this time. When he plug it into the computer, the little light on the Cruzer Glide flashes and it shows up as a “USB drive” in Windows Explorer but is always empty when clicked on.
Except for SanDisk Cruzer Glide, other usb drives like Cruzer Blade, Ultra Dual Drive, Ultra Flair, and Ultra Fit may also have this kind of 128GB USB flash drive not recognized problem. Well, what on earth caused this problem?
The cause of SanDisk USB devices not recognized varies from one user to the other. The reason changes from Windows configurations to the USB drive itself. Therefore, to find out the corresponding affecting factor is quite necessary. In general, below several elements might be the main causes.
Bad USB ports.
Corrupted registry entry.
Applications for mobile devices affected the recognizing.
Your SanDisk 128GB USB drive has corrupted files or bad sectors.
The flash drive is not formatted properly.
Take different measures for different causes. You can try the USB drive on another computer to test if the USB port is functional. If there are corrupted files on the USB drive, delete them. You can turn to SanDisk USB erase files when you cannot delete those files manually.
As covered before, a corrupt registry entry could cause your SanDisk product to not be detected by the computer. Removing the registry keys created on installation of your SanDisk product will allow the computer to fully reinstall the device and may resolve the issue. Run regedit.exe to start Registry Editor. Delete ONLY this key in registry: “HKEY_LOCAL_MACHINE\System\CurrentContolSet\Enum\USB\VID_0781&PID_7101 and/or VID_0000”.
Then reboot and insert the SanDisk USB. You may want to backup all keys before you do this.
Additional, it is reported by SanDisk support that some applications for mobile devices such as Samsung KIES and HTC Sync may prevent the USB flash drive being recognized correctly. So check if you have installed and started any similar applications. If yes, turn them off for your 128GB flash drive to be recognized.
If the 128GB USB drive is not formatted correctly, you need to run chkdisk and format the drive. Some users say their SanDisk 128GB USB flash drive not recognized by Readyshare due to incorrect file system format. Under such condition, a reliable and powerful USB format tool will be great help. Surely, you can format the 128GB in Diskpart. Please see format Intenso USB drive for detailed steps of using Diskpart.
The only drawback of Diskpart is that it does not allow you to format USB drive or SD card that larger than 32GB to FAT32 file system. In this case, AOMEI Partition Assistant Professional is helpful. It can help you format the SanDisk 128GB USB drive to FAT32, EXT2, EXT3 and NTFS to meet different system requirements. It has user-friendly interface and works in Windows 10, 8, 7, XP, and Vista. Download to have a try.
1. Insert the USB drive to your computer. Install and run AOMEI Partition Assistant.
2. Right click the USB drive at the main interface and select “Format Partition”.
3. In the pop-up small window, specify the partition label and choose the right file system. And then click “OK”.
4. Click “Apply” to execute the operation.
Tips: if you don’t want to lose data on the USB drive, you can trychange file system without formatting.
When you encounter the “SanDisk 128GB USB flash drive is not recognized on the computer” issue, stay calm and find a way out. As a matter of fact, AOMEI Partition Assistant can format bootable USB drive to normal in Windows 7 as well. By the way, it is always allowed to restore partition on USB drive if you want to abandon the formatting.
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