File history on windows 8 not copying all of my files

For some reason It only copies 142mb of my 800mb audiobook folder. It’s in my music library and no matter how many times I try re-running file history it just won’t copy all my audiobooks. I used file history because that’s what WD recommends but since the WD smartware is also supported in windows 8 I guess I’ll switch back to using it until I figure this out.



Instead of using any software can you try to drag and drop the files into de the drive just for testing purposes.