Hello, i can see the pendrive correct size but when i want to format it is disconnecting and connecting - format fault.
Any tool can help?
Why are you trying to format it? If it’s new it doesn’t need to be formatted.
its not new. I was using for about 2 years with no errors. Now then im trying to write data - copy fault. So i was trying to format but then disconnected and connected after aroud one secound and format fault. after thet is disconnecting and connecting back every couple secounds.
The connecting / disconnecting sounds like an electrical connection problem. Lightly cleaning the port and USB contacts with emory paper should help.
The write data - copy fault sounds like something a chkdsk /f terminal command can fix. And the Command Prompt needs to be Run as Admin mode. (requires a right click to invoke)
Unfortunantly, checked in few usb ports and cleaned pendrive connectors and didnt help.
chkdsk /f also showing like below
The type of the file system is exFAT.
Volume Serial Number is 1228-8A62
Windows is verifying files and folders…
The upcase file content is incorrect.
Corruption was found while examining the volume bitmap.
The upcase file content is incorrect.
Corruption was found while examining the volume bitmap.
Corruption was found while examining files and directories.
An error occurred while examining the volume bitmap.
OK! Try chkdsk with all 3 of these options at one time:
chkdsk /f /r /x
plus the USB’s drive letter. And it must be run in Admin mode like the last time.
Not getting formatted
Why are you formatting? Are you getting the same errors as Greg24? Did you try all the steps mentioned above?
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Your Sandisk Ultra Fit 128GB disconnecting during formatting could be due to a faulty USB port, cable, or the drive itself. Try using a different port or cable, and if the issue persists, contact Sandisk support for assistance.
You can try using DiskGenius or HDD Low Level Format Tool to format your pendrive. These tools are reliable for fixing format faults and other issues with USB drives. If these tools fail, the pendrive might have a hardware issue.
It might be a connectivity issue. Try using a different USB port or cable, and ensure your computer’s USB drivers are up to date. If the problem persists, the drive might be faulty and needs replacement.
You can start by using Diskpart to clean and reformat the drive-through Command Prompt with admin rights. If this doesn’t work, you can try tools like HDD low-level format tool for low-level formatting or partition management software such as MiniTool, and EaseUs partition tool.
You can also check for physical issues by ensuring the USB connector is clean and undamaged, and testing the drive on another computer. If still this issue persists then you need to replace the pen drive
