Thumbscrew can stop the autorun viruses obtained by the use of a removable device like a USB key. In other words, it has been designed to make your USB key accessible in read-only mode. Thus, it protects it from any automatic writing. It is easy to install and can run on any removable device: a USB key, an external hard disk (IDE/SATA), flash drive, etc. Thumbscrew is configurable and can disable autorun viruses at any time.