There are several possible reasons for the "Not enough wipes" error message:

1) One license allows creating one USB and performing 10 wipe operations from it. If you have performed 10 wipes, and try to start the next one - you will get this message.

2) If you created the USB with the Wizard, and then copied the USB content to another USB, and you boot from the copy - you will get this message.

3) If you boot from USB made from ISO image created by TWO Wizard.

4) If the USB is corrupted, and TWO cannot read its identifier.

If you are sure that you did not use up all the wipes (case 1), and you definitely boot from the original USB (cases 2 and 3), then please contact Jetico support.