Hard Drive Space

[Shimergloom]

My 141GB hard drive is almost full so I'm trying to free up some space; problem is, as far as I can tell, I'm only using 80GB of the drive, including hidden system files, and I have no idea what the other 40GB are. So, is there any easy way to determine what those 40GB are?
Thanks in advance.

 

[enouwee]

You are using Windows, aren't you?

If you're sure everything's stored inside the same partition and you've already done a disk check to eliminate lost file fragments, you can run a tool like WinDirStat to visualize who much space every directory uses.

 

[w/e]

If the computer is telling you that the hard drive is almost full, how do you know that there is supposedly only about 80 GBs worth of data?