Hello and thanks for looking. Recently got a new Macbook Pro 15 incher. Im a new mac user. Replaced build-in HDD with a 512 gb SSD. Very happy with the machine, very fast, reliable. All in all very glad that i finally moved on from windows crap. Then i noticed that my available HD space was just 80gb. I opened finder, looked up folder sizes and they added up to just 210gb. So where did another 210gb go? Downloaded Disk Inventory X application and this are the two biggest folders it showed up: \users - 173gb \volumes\system\users - 170gb Can anyone please explain WTF is going on?