The USB stick is always in good code.

Some users for the diagram convenience, the purchase of the U disk has been plugged in the computer, easy not to take off, but cooked do not know how to do a lot of harm.

When the computer starts, the operating system detects the USB every time, sometimes the impact current is very large, and it is easy to lead to the memory stick chip and USB interface damage, especially when encountering some inferior power supply, the author damaged a USB interface.

It is also possible to cause a shutdown failure. If it is a USB device with power, long time, in case the power supply "leaking", the consequences will be more unimaginable.