Huge D drive, tiny C drive. Why?

It won't use it or put anything in it. The D drive is for you to use. The lapton uses C for its operating system.

C: is used for Windows itself and other programs. D: is primarly used for personal files like music, movies etc. And if you have alot of personal files you'll need the space.

Just as c0re said, the C: partition is for system files like your Windows and Program Files directories. D: partition is used for your own personal files. This way if you ever wish to change your operating system, your personal files are stored on a separate partition so they won't be affected. Your 'My Documents' or your documents library (depending on which OS you're using) should be set up to be stored on your D: partition. If it isn't you can set this up yourself and this is probably a good idea   Google is your friend, just bear in mind its different on each operating system   Hope this helps!

Thanks guys.

Best answer selected by Schopenhauer.

Gnomes!!!! pesky critters!!