So we having a heated debate about MS decision on introducing ads on me menu

So was saying this can be a potential critical vuln as always... its kind of like MS tread Mark now :-C
My reasoning was now ads will have direct access to pc memory since they are being delivered straight to your pc

and this other guy went on to say they are being delivered to your machine they are being delivered to explore...... and I was like WTF?? isnt explore a process running directly on your machine??