Though Windows 10 can't block ads on its own, in this guide we show you how easy is to opt-out from receiving personalized advertisements in your browser, Microsoft account, and Windows apps.
Similar to its predecessor, Windows 10 includes many ways to monetize the operating system. One of these methods is advertisements. Microsoft's tracking cookies (which are installed on your computer when you visit Microsoft websites) track your browsing in Microsoft Edge or your browser of choice. Microsoft logs data on searches you perform on your computer, such as searches using Cortana, and usage in certain apps. In short, you're being watched by default.
Full story from the WindowsCentral blog...