Ehm...
>Microsoft has renewed its Privacy Policy and Service Agreement. The new services agreement goes into effect on 1 August 2015.
>By default, when signing into Windows with a Microsoft account, Windows syncs some of your settings and data with Microsoft servers, for example “web browser history, favorites, and websites you have open” as well as “saved app, website, mobile hotspot, and Wi-Fi network names and passwords”.
>Windows generates a unique advertising ID for each user on a device. This advertising ID can be used by third parties, such as app developers and advertising networks for profiling purposes.
>When device encryption is on, the BitLocker recovery key for the user’s device is automatically backed up online in the Microsoft OneDrive account.
>To enable Cortana, Microsoft collects and uses data such as your device location, data from your calendar, the apps you use, data from your emails and text messages, who you call, your contacts, how often you interact with them on your device, your music, alarm settings, whether the lock screen is on, what you view and purchase, your browse and Bing search history, speech data, your voice input, as well your name and nickname, your recent calendar events and the names of the people in your appointments, and information about your contacts including names and nicknames.
>“We will access, disclose and preserve personal data, including your content (such as the content of your emails, other private communications or files in private folders), when we have a good faith belief that doing so is necessary to enforce the terms governing the use of the services".
>Microsoft basically grants itself very broad rights to collect everything you do, say and write with and on your devices in order to sell more targeted advertising or to sell your data to third parties. The company appears to be granting itself the right to share your data either with your consent “or as necessary”.
https://www.microsoft.com/en-us/privacystatement/default.aspx
