You might want to check your privacy settings, I would be turning some of this stuff off.
1. Microsoft creates a unique advertising ID for each user on a device running Windows 10. This can be turned off in the Privacy Settings.
2. What you say or type may be processed by Microsoft, for instance by the operating system's Cortana service or by providing spelling correction.
3. Windows supports a location service that allows apps and services, such as Find My Device, to request your location in the world. This can be turned off in the Privacy settings.
4. Microsoft syncs some Windows settings automatically when you sign in to a Microsoft account. This is done to provide users with a personalized experience across devices. Data that gets synced includes installed apps and their settings, web browser history and favorites, passwords and wireless network names, and addresses of shared printers.
5. Telemetry data is collected by Microsoft. This includes installed software, configuration data and network and connection data. While some of it can be turned off in the Settings, not all can.
Windows 10 and Privacy - gHacks Tech News