After downloading the Windows update to build 10586.63, suddenly my logitech g35 headset is undetecting and redectecting itself, making it useless for communication and gaming. It seems to function fine as headphones until the mic becomes involved, when it all goes to hell. I tried updating the drivers for the sound card, headset, and USB ports, but nothing worked. I even used my roomate's brand new g35 and the same problem occurred. I tried switching USB ports, restarting, replugging, scanning for hardware changes. If I use the Logitech Gaming Software program, it registers my mouse, but the headset will appear and disappear, exact same problem in the Playback Devices and Recording Devices tabs. It does count as disabled or disconnected, it just plain disappears.