A way to keep your USB drive from poisoning

Tell you a simple and easy way to make your USB drive never poisoned. The method is as follows:
In your USB drive to build a folder, named Autorun.inf, there is nothing in it. If your USB drive cannot be renamed, this means that your USB drive has been poisoned, at this time, personal advice you to back up important files, and then format.
The principle is: most viruses are first to create autorun.inf and then type the content, the virus entered the C disk is through the folder inside the file to the media, if the previous build an empty folder, we all know, a disk can not have two file names.
It is so simple, let you gently loose the U disk virus!