1, USB flash drive manufacturing failure: there is an abnormality or error in the manufacturing process of USB flash drive, and the USB flash drive cannot be successfully started. Therefore, when making a USB flash drive, you must strictly follow the tutorial and check whether each step is correct.
2.u disk damage: U disk is easy to be damaged after long-term use, or it may be damaged during the production process, resulting in the failure of U disk startup. At this point, the U disk needs to be replaced or repaired.
3.BIOS setup problem: In BIOS setup, you may need to set the USB flash drive as a boot device. If the settings are incorrect or incorrect, the USB flash drive will not start. Check whether the BIOS settings are correct, and you need to set them according to the motherboard instructions.