Help Insufficient Storage with SD card

So, I have had my Huawei Ascend Plus for over a year now and I finally got an SD card for it. I've moved all movable apps to the sd card and my default download location is the sd card. I have over 7 gb of space left on memory card, but the default apps that I don't even use (google books/magazines/music/movies) are taking up all of the space in my internal memory. I have already restored them to factory settings to clear up some space.

It is still giving me an error that says insufficient space whenever I go to download anything. What do I do?