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Who to Repair Corrupted USB Flash Drive / Pen Drive without Formatting

How to repair damaged USB flash / Pen drive using CMD

CMD is commonly used for recovery of damaged USB flash drive & pen drive. CMD requiring no format and also allows you to fix a corrupted USB drive without any data loss. Same CMD can be also used to fix damaged SD card also.


  1. Plug in your USB flash drive or pen drive to your computer.
  2. Go to the start menu, type in "cmd" in a search barand hit enter and then you can see something named "cmd.exe" under a list of programs.
  3. Right click "cmd.exe" and type in "chkdsk /X /f USB drive letter:" or "chkdsk USB drive letter: /f ", for example, "chkdsk /X /f G:" or "chkdsk h: /f" in the following command windows to start to repair damaged USB pen drive without formatting.

Finishing all the steps, Windows will check and fix the file system of the flash drive. It usually takes several minutes. After that, if you see "Windows has made corrections to the file system" in the command window, then congratulations! The damaged USB pen drive is successfully fixed and you can access your data with ease.

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