I used Window 8 and have set UAC setting to 'never notify'. I tried again (do exactly like what I've told) , when updater.exe clicked, it ran, 'Software Loading' seen at the Garmin and another time 'Loader Loading'. Updater.exe said update succesful. I unplug the Garmin, and force shutdown when the unit still says "Loader Loading". I started the Garmin, but it still stay at logo. Has the Garmin installed? What should I do next?