I suspect that you have banners checked for your notification which you have to uncheck within settings. I don't remember if I had to do this for each application or if this has changed in the newer version of windows but if you go to the notification settings and hit enter on one of the apps that you have turned on, you should get a new screen with a few check boxes.
Ah! This is a great tip! So, are you saying that the notification banners are interfering with my work flow by usurping the focus and not releasing it until I alt+tab? Orlando Enrique Fiol Charlotte, North Carolina