WDI
So far what I've seen of Windiws 10 it looks pretty nice. But there is a part of me that thinks nothing is free. I thought I recently saw that one of the new features in Windows 10 update is to add more start screen widgets or whatever they are called that advertise App Store programs. We are so over run with advertisements now days. The Internet has become swamped with ads. Cable tv is nothing but ads. If rather pay up front and not have to deal with that stuff inside the OS.
They are called tiles. They are customizable. You can make them active or not selectively. For example; a weather app will show the temp or any alerts if they are active without having to open them. All programs can be tiled as well as apps. Program tiles have no ability to be active.
The OS is not a platform for advertising as such. An app that is free may show an ad if that is the way it is written. None of mine do. Also its generally in the description in the Windows store if an app has ads. Usually they are in app ads.
Also right now Windows 10 is free as long as you have a version that is a qualifying version. That will end in June. After that one will have to purchase Windows 10.