So my girlfriend recently got a laptop with a single 600GB HDD in it. Which is plenty of space, except that Dell determined that the C: drive should be 58GB and the rest should be the

drive.
Well we all know that 60GB doesn't take very long to use up, and even with me telling her to save everything to D it has inevitably happened. No biggy, I decreased the

drive by 40GB but was still unable to extend (because it was not continuous space).
So I shrunk the

drive down to 40GB and used the rest to create the F: drive. I copied the contents of

to F: and deleted

. Now even though the C: and formerly

drives are continuous, why can I still not expand?
Is it because C: is the system/boot drive or is it because I am not using a dynamic disk? What do you guys think would be the easiest way to do this? I know there are 3rd party tools that are supposed to work better than Windows, but I have never used any.
Thanks