Installed the KKMulticopter app, ran the driver install located on the KKMC page. Here are a few links that helped me get the USB device working on WIN7. http://www.avrfreaks.net/forum/usbasp-driver-problem https://sourceforge.net/projects/libusb-win32/?source=typ_redirect http://rcexplorer.se/forums/topic/flashing-the-kk2-board/page/2/ Had to run the LIBUSB app and it found the USBASP device and create a new INF for drivers I was getting a “unable to find device” at some address message in the KKMulticopter app http://lazyzero.de/en/modellbau/kkmulticopterflashtool