OK, understood, be aware on the forum here like other forums the people are mainly owners like yourself
You have downloaded the Downloader so with the notebook connected to the internet, connect the GS911 to the USB port and launch the downloader, press options and it will confirm the GS911 is connected and launch your browser to download/install the PC App, it is done this way to stop the counterfeiters
If the downl;oader does not detect the GS911 is connected then check the power settings on your notebook/PC and turn off any power savings