DISABLE WI-FI SENSE
If you connect wirelessly to your network, then the Wi-Fi Sense feature, which connects you to crowdsourced Wi-Fi hotspots and networks shared by your contacts, is enabled by default if you choose Express Settings during the Windows 10 upgrade process. It’s designed to make it easier to connect to friends’ networks through your Facebook, Outlook.com or Skype contacts list, but if you’d rather not share this information, make sure you disable it. Click ‘Start > Settings > Network & Internet > WiFi’. Click ‘Manage WiFi Settings’ and flick both switches to ‘O ’ to prevent your network details being shared with others.