>When device encryption is on, Windows automatically encrypts the drive Windows is installed on and generates a recovery key. The BitLocker recovery key for your device is automatically backed up online in your Microsoft OneDrive account. >Some of the settings that are synced include: saved app, website, mobile hotspot, and Wi-Fi network names and passwords.
>Windows generates a unique advertising ID for each user on a device. Your advertising ID can be used by app developers and advertising networks to provide more relevant advertising.
>To enable Cortana to provide personalized experiences and relevant suggestions, Microsoft collects and uses various types of 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 and how often you interact with them on your device. Cortana also learns about you by collecting data about how you use your device and other Microsoft services, such as your music, alarm settings, whether the lock screen is on, what you view and purchase, your browse and Bing search history, and more.
>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.
Per carità, lo sto usando anche io questi giorni ma non mi puoi venire a dire che è sempre stato così perché non mi risulta proprio.
Apple sinceramente non so come sia a livello di privacy e non mi interessa nemmeno, Google è forse la peggiore, ma quello che offre sono servizi e come tali non sono obbligato ad utilizzarli.