The main feature of Panda USB Vaccine is its ability to disable the autorun option on your computer and the autorun.inf functionality on USB devices. These are the most common mechanisms used to infect computers via USB devices.
This lets you vaccinate the USB drives that you connect to your computer. This way, these devices will also be protected when they connect to other computers that aren't vaccinated.
Panda USB Vaccine, developed by Panda Security, is a free and convenient utility tool that protects your computer from malware threats spread through USB devices.