How to find Hard Drive capacity in Mavericks? I usually check the Hard Drive capacity in the Activity Monitor. But when I checked it, it literally looked different. I selected each tabs, trying to find the information about my disk but to no avail. How can I find the disk occupied in my hard drive?
You can check it via Finder. Just select the Hard Drive and press CMD + I.

Or 


Click on the Apple icon on the menu bar
Select About This Mac, then click on More Info.
Select Storage