I believe 7 does both, a careful defrag in the background, and a full run once a week, which most people will never experience since they scheduled it into the "off time" for most users :P
Or maybe it just noticed that it missed its scheduled run and decides to do it the next time you activate it, and thats what i figured was the background defragger? Who knows!
Or maybe it just noticed that it missed its scheduled run and decides to do it the next time you activate it, and thats what i figured was the background defragger? Who knows!