To reset the USB stick, click on the [[!img lib/view-more.png alt="Drive Options" class="symbolic" link="no"]] button in the title bar and choose **Format Disk** to erase all the existing partitions on the device.
**If the system fails to start**, that means that the computer does not have enough memory for this operation mode. Try with another computer, or find another Linux system, such as another Tails USB stick, to do the reset from.