Vaccine USB is a portable virus detection tool for Windows OS-based industrial systems. Powered by McAfee, up-to-date virus definitions can be downloaded to the device from any Internet-accessible computer so that users can perform the virus scan with the latest definition file, even in network-isolated environments. The unit works with computers running Windows operating systems, including XP Embedded, a popular platform for industrial computers. Upon insertion of the Vaccine USB, the scan will auto-run, a significant benefit for industrial computers that may lack a keyboard, mouse or monitor. A detailed scan log is saved on the device.