: An excellent official tool that frequently revives non-SD flash media experiencing partition glitches.
| Error | Possible Cause | Solution | | :--- | :--- | :--- | | | USB driver conflict or dead controller. | Try a different USB port. If using USB 3.0, switch to USB 2.0. Restart PC. | | "Format failed" after 100% | Physical bad sectors at the beginning of the drive. | The drive is likely beyond repair. Consider using HDD Low-Level Format Tool as a last resort. | | Drive goes from 8GB to 2MB | Firmware corruption (common in counterfeit drives). | Ufix-II cannot fix fake capacity drives. Use H2testw to verify real size. | | Tool crashes on launch | Missing runtime libraries or antivirus interference. | Temporarily disable real-time protection (re-enable after). Install Visual C++ Redistributables. |
This tool provides comprehensive partition management alongside USB formatting capabilities. While it can format USB drives in FAT32, exFAT, and NTFS, it lacks Ufix-II's low-level repair capabilities for write-protected or controller-corrupted drives.
: Download the .zip or .7z file. Right-click it and select Extract All using a tool like 7-Zip . Usb Flash Drive Format Tool Ufix-Ii Download
Right-click on the downloaded Ufix-II.exe file and select .
: Often used as a primary solution when standard Windows formatting tools fail because a drive is stuck in read-only mode.
The “II” in its name indicates a more advanced version of the original Ufix tool, featuring better compatibility with newer flash drive hardware and improved error handling. : An excellent official tool that frequently revives
Run the program in Windows Compatibility Mode for Windows 7 or Windows XP, as legacy mass production utilities struggle with modern Windows 10 and Windows 11 security protocols.
Disconnect other flash drives to ensure the tool targets the correct device. :
Unlike generic formatting utilities, the Ufix series is segmented by hardware specifications to prevent firmware mismatches. The architecture breaks down as follows: If using USB 3
The tool is closely associated with , particularly for their 4GB, 8GB, 16GB, 32GB, 64GB, and 128GB USB 2.0 products. However, it can also work effectively with other brands when they use compatible controller chips (such as the SK6226BA). When Windows Disk Management cannot complete a format, or you get persistent "The disk is write protected" errors, Ufix-II is often the final and most effective solution.
: Open the extracted folder and run the Restore_v3.24.exe (or similar version) application.