Data We Collect
Microsoft collects many kinds of information in a variety of ways in order to operate effectively and provide you the best products, services and experiences we can. We may combine this data with information that is linked to your user ID, such as information contained in your Microsoft account.
When you acquire, install and use the Program, Microsoft collects information about you, your devices, applications and networks, and your use of those devices, applications and networks. Examples of data we collect include your name, email address, preferences and interests; browsing, search and file history; phone call and SMS data; device configuration and sensor data; and application usage. For example, when you:
install the Program, we may collect information about your device and applications and use it for purposes such as determining or improving compatibility,
use voice input features like speech-to-text, we may collect voice information and use it for purposes such as improving speech processing,
open a file, we may collect information about the file, the application used to open the file, and how long it takes any use it for purposes such as improving performance, or
enter text, we may collect typed characters and use them for purposes such as improving auto complete and spell-check features.
But Surely there must be an option to stop this ?
Well here’s microsoft answer to that
Controlling the Transmission of Data
Use of the Program is at your discretion. Many features that transmit data to Microsoft are enabled automatically. You may not have the option to turn off the transmission of data for certain features in the Program.
To stop the transmission of all data, you must completely uninstall the Program from all of your devices. This may require you to reinstall your device’s operating system.
For more information about the features and functionality that enable you to control the transmission of data, please review the Program’s product documentation.
It is being said that microsoft will delete all the user related data after the RTM version of Windows 10 is released publicly.