Sunday, February 19, 2017

How to delete and format a protected EFI disk partition on USB thumb drive

When you try to remove the partition on USB thumb drive which is protected EFI disk partition, you will receive a error "Access is denied"

(Remark: You cannot not use Windows format tools to format the USB thumb drive too)

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Solution:

Use "HP USB Disk Storage Format Tool" to format the USB thumb drive

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Then, use "Diskpart" to clean the disk.

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It will become a normal USB thumb drive now.

 

Reference:

http://www.winability.com/delete-protected-efi-disk-partition/

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