In the last screenshot no information was showing about the hard disk because there was not enough room in the right pane. In this screenshot:

1. The middle bar has been moved to the left to give more space to the right pane.
2. The information for the hard disk is showing. 7.31 Gigabytes (7.31 billion bytes) are being used on the hard disk for file storage, and 2.04 Gigabytes are free.