This page introduces several ways to repair bad blocks on usb disk or usb flash drive for free.
Before the repairing, there are some must-do items that you need to do for a safe usb repairing.
How to check usb flash drive for bad sectors?
You may use free tool IM-Magic Partition Resizer Free which can help find bad blocks on your usb flash drive, or you may use Error-checking in Windows computer that can help find the bad blocks. (Usually the following free tools can help find and repair bad blocks during the procedure.)
Here come the free usb bad blocks repair tools.
The bad sector repairing is provided by Windows operating system that you may use any computer that installed Windows OS no matter Windows 11 or 10 or the old 7 Vista XP...
Here are the steps to start repairing your usb disk or usb thumb drive.
Repair usb bad blocks with Error-Checking in Windows 7
Note: It would be a little different if your computer is a Windows 10 computer, and the repairing steps would be like this. (The procedure will be different on a Windows 10 computer. It would ask you to click ->Repair drive to proceed the repairing.)
Repair usb bad blocks without software in Windows 10 by using Windows built-in utility Error Checking
IM-Magic Partition Resizer Free is a free utility that can fix bad blocks on usb flash drives or hard disks or any removable storage media with its Check Partition function. Here are the steps.
USB Disk Storage Format Tool is another free usb repair tool that you can use it to find and repair usb bad sectors and correct the errors as well as formatting the usb stick or disk with the free tool.
An OTG cable can help get usb flash drive connected to Android phone for repairing(formatting) with the following steps.
Pros: It's easy to use it on a phone if you don't have a computer
Cons: OTG is needed.
Also read: how to format usb on android phone
Note: the usb drive formatting on android phone can only fix some logical errors and it is not the bad blocks repairing.
CHKDKS command can help remove bad blocks on your usb stick or usb disk. This free command is provided by Windows computers with the following steps.
What does chkdsk /f /r /x mean?
The /f parameter tells CHKDSK to fix any errors it finds.
The /r parameter tells it to find bad sectors on the drive and restores readable information.
The /x parameter forces the drive to be unmounted before the process starts.
Pros: Free utility provided by Windows.
Cons: Chkdsk is not easy for everyone.
Question: How do you fix bad sectors on a usb drive?
There are many ways to repair bad blocks on usb drive including free usb bad block repair tools or with Windows built-in error-checking utility or repair the usb bad sectors on android phone without a computer...
Question: How do I run chkdsk on a usb repair?
Here are the steps to run chkdsk on usb flash drive on Windows computers.
Also read: how to repair usb bad sectors
Last updated on May 14, 2023