On my windows 10 HP laptop I cannot keep windows on top of each other. I will have one window open like say a browser and then try to open an app or even the task manager and it will open on top of the browser window but when I move my mouse to try and target it then it immediately moves behind the browser. Also so when i click things on the task bar like cortana or the windows button and go to click something on it the window immediately closes and wont let me target it.