Try, Control panel/performance and maintenance/System/Advanced/settings tab/performance and click on the settings button. Place a tick in the box, "Show windows contents". Make sure that the dot is in the top circle, [Let windows choose what's best for my PC] then click the "Apply button then "OK" button. Don't forget you need to be logged on as Administrator for this to take effect.
Hope this helps, if it is what you have already tried then I'm not sure why it will not remember the settings.