Panda USB Vaccine allows users to "vaccinate" their PC in order to completely disable AutoRun so that no program from USB/CD/DVD media (regardless of whether they are vaccinated or not) starts automatically.
Panda USB Vaccine can also be used for individual USB drives to disable the AUTORUN.INF file to prevent the automatic spread of malicious infections. When applying the application to a USB drive, the vaccine permanently blocks the AUTORUN.INF file, preventing it from being read, created, deleted or modified
Once launched, the application effectively blocks Windows from automatically executing any malicious files that can be stored on a specific USB drive. Use of the drive remains normal, files (and even malicious ones) can be copied to/from it, but their automatic opening will be prohibited.
Please note that vaccination of the USB drive is an irreversible operation and under some unlikely conditions the application may stop working. In any case, if there are no AUTORUN.INF files on your USB drive, the vaccination is absolutely safe.
With Panda USB Vaccine, you will be safe from any malicious attacks coming from AUTORUN.INF files.