If your drive is not being recognized first try other USB ports. Some desktop computers may need to use the USB ports in back of the computer.
If other ports did not help, please download this program and follow the instructions. (This is a tool for low level formatting of a drive.) Note: This will erase all the data from the flash drive.
Still nothing? If you come across any difficulty using this tool, please start a support case emailing us at firstname.lastname@example.org, indicating your order#, the problem you faced, steps taken. We would appreciate if you attach screenshots to your email.