cylene i am not sure what you are talking about...if you are referring to the permanent files those most likely are the important ones that run your computer ....those i am only guessing are for most of us off limits to keep our computers running like they should. and those files most likely dont get fragmented...the ones that get fragmented are the ones that we dont have a place for and the computer will group them together to make sense of our files
....and give us more space.....