I have an external hard drive that I'm downloading a bunch of media onto, and my main PC hard drive is supposed to have 321 GB of free space, but ever since I've been downloading all kinds of stuff onto my external HD my main HD is filling up really quick even though I'm not downloading anything onto it. I'm down to 186 GB of free space, from 321, in just two days. Anyone know what the heck is going on? Are the files being temporarily stored on my main HD? If so how do I get rid of all of them so I can get back my GBs of space?