To be fair it is pretty discrete and is placed on the Start menu and it can be switched off. Having seen US telly’s obsession with an advert every two seconds, we are concerned that it is only a matter of time before we get full screen demands to fill in customer satisfaction sudden shouting videos which themselves on forms (funny how no browser company has worked out how to stop those).
What is also worrying is that Microsoft has been harvesting all your data and knows what your interests are. You had better hope that it does not start flashing porn advertising when you log in at work
All Redmond is doing now is suggesting an app displayed by Microsoft is from the Windows Store and the advertisement is placed on the Start menu. Since the ad is right below your most used apps, it is quite prominent.
Since the app suggestions are still only part of a test. As long as the ads can be easily turned off, they don't greatly affect Windows 10, but the question is, who is actually going to keep them and how long will it before they have to be made compulsory.