Notice the pagefile.sys file is 8.0GB and the hiberfil.sys is 6.0GB. I figured out the hiberfil.sys file is for hibernating and is the same size as my RAM, 6 GB. The pagefile.sys is essentially the swap file ... extra memory on the hard drive.
Okay, I'm no expert on this but I figured out it is safe to eliminate the hiberfil.sys file. The only implication is that I just can't hibernate the computer anymore, which I don't do anyways. Doing this brought me back up to about 9 GB of available disk space ... awesome!
Now, how about the pagefile.sys file? I did a search and have found all kinds of advice from 'you should delete it if you have a SSD' to 'never change it, it will screw your system up'. The most logical explanations I have read is that I can simply modify it so it is much smaller if you need the extra disk space. It sounds like when you have 6 GB of memory like I do, it really isn't necessary to have a 8 GB pagefile. However, before I make any changes ... anybody have any words of wisdom on the pagefile?