If the PC you are installing on is not connected to the internet, you will need to download the drivers via another PC and install them before connecting the interface. Just connect the interface to a USB port on the computer - Windows will then show a notification that it is locating and installing device drivers.and then another message when the installation is complete. If you are installing the package on a PC that is connected to the internet, Windows 7 can automatically locate and install suitable drivers via Windows Update. Stage 1: Install the USB drivers for the interface To get your interface up and running, you need to install software device drivers for the USB interface.