https://www.theregister.co.uk/2018/01/25/microsoft_windows_10_privacy/

Microsoft is laying its cards out on the table. The software giant has produced a tool that's claimed to show users how much personal information its Windows 10 operating system collects and sends back to Redmond for diagnostics.

The application is dubbed Diagnostic Data Viewer, and is free from the Windows Store. It reveals that stuff like the computer's device name, OS version, and serial number, as well as more detailed records such as installed apps, preference settings, and details on each application's usage, are beamed back to Microsoft.