I just set up a 4 TB My Cloud. On the Dashboard, it shows that there are 3.9 TB available. However, when I map the hard drive to windows, only 3.50 TB are available out of 3.57 TB, meaning that not only does it not show the full 3.9 TB available, but there is another 70 GB being used for something else. I have not copied any files on to this drive. Anyone have an idea of what could be causing this?