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How to fix "Windows was unable to complete the format"


Today in this article, we will tell about how to recover data from external device that cannot be formatted and guide you how to fix “Windows was unable to complete the format” step-by-step.

Sometimes when you right click the Pen drive/USB Flash Drive/SD Card and try to format it, there’s an error prompt “Windows was unable to complete the format”, this may cause by wrong disk format or source file corrupted.

3 methods to fix “Windows was unable to complete the format” error.

1. Right click “This PC”, choose “Manage” and then turn to “Disk Management”. You can right click the drive that is giving the error and choose “Format”.
2. Run command prompt, right click “Start” Button and run “Command Prompt (admin) “, type “Format G:  /fs: ntfs”. You can change “F” to other drive letter of your external device, and change “NTFS” to “FAT32” if you don’t need NTFS file system.
3. Recover data from Pen drive/USB Flash Drive/SD Card with Bitwar Data Recovery.

How to recover data with Bitwar Data Recovery.

Step One. Download and install Bitwar Data Recovery and then launch the software.

Bitwar Data Recovery for Windows download Bitwar Data Recovery for Mac download
Step Two. Choose the external device and then click “Next”.
Step Three. Select all file types if you don’t know what kind of types lost.
Step Four. Double-click to preview the file and then hit “Recover”.


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Bitwar Data Recovery it’s free pen drive data recovery software that can recover accidentally deleted or formatted photos, images, documents, video, audio, archive files from hard drive, memory card, external USB drive, etc.

By following the above tutorial, you can recover your important data from Pen drive/USB Flash Drive/SD Card easily and quickly. Hope the above solution can help you to fix “Windows was unable to complete the format” error.