My dad and I have the same laptop, G75vw-nh71, and we are having the same problem and don't understand what's causing it. The problem is that "Show window contents while dragging" gets turned off repeatedly by an unknown cause. To temporarily fix it, I go into system properties, click the advanced tab, and click settings under performance options. It shows that "Show window contents while dragging" is already checked, So I have to toggle it off, then on, then click apply and then the windows behave properly for a while, then something changes it back!
I was wondering if anyone has had this problem and if there is a more permanent fix for it?