In order to use the APPolo Control GUI or yelloGUI on Windows 8, 8.1 or 10 please install the APPolo GUI Version 8.4.0 or later:
http://www.lynx-technik.com/en/support/download-area/appolo/
and the yelloGUI version 2.3.0 or later:
http://www.lynx-technik.com/en/support/download-area/yellogui/