I assume that you want to find out what the hard disk storage is being used for rather than memory. If you google Treesize you can down load a trial copy of treesize which will show where the disk space is being used.
Alienware 17 R4 2017 review
Interview: Camille Walala on her giant 3D installation inspired by childhood funfair visits
Best iPad buying guide 2017
Où regarder le British Open 2017 ?