Despite what you may have read, Windows 10 is not spying on everything you do. So feel free to remove your tin-foil beanie. However, Windows 10 could potentially collect a ton of data about you — probably more personal information than any operating system in history. That’s due largely to Cortana, Win10’s built-in personal digital assistant, which collects such information to better serve you. But Windows 10 also collects information to make other aspects of your computing experience more personal.