Impossible to format USB key

Tried to format the USB key for use in my camera clubs. They couldn't find / read / or receive message saying 'must drive e to the format to use. I tried to format it to MS-DOS and ExFat on IMac and laptop Pro. ElCapitan Version 10.11.2. Anyone else have the problem?

This link can help you format the USB key to the default settings: read for both MAC and WINDOWS: http://www.pendrivelinux.com/restoring-your-usb-key-partition/

Tags: Mac

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