Shows what is taking up space on your drive in a graphical output. Can delete files from the program. Be careful as you can delete stuff that will crap out the OS.
I would delete all the old windows updates along with the temp folders.
Google and you'll find it.
------------------------------I ain't signing nothin
Reply to sturm
To check the storage distributions go to START==>(OPEN) MY COMPUTER ===> Select all the drives ===> Click right and go to properties, you will be able to check storage capacity and data have been stored in each drive.