Solve : 150gb C: nearly full, 1tb D: not being used/empty?

1.	Solve : 150gb C: nearly full, 1tb D: not being used/empty?
Answer» basically my C: drive is NEARLY full, slowing my computer down immensely, where my D: drive(being a 1tb HD) is completely empty and not being utilized. Just bought my computer a week ago. had windows already installed. im running 64 bit windows 8.1 im being told to create a forum regarding how to expand a drive partition , and ALSO how to shrink a partition thanksHow did you manage to fill the C: drive in a week ? ? We need more info here...and a screenshot of DISK Mangement would help as well...thanks for your reply. honestly i downloaded world of warcraft (roughly 30gb) and a few extra programs like Skype etc.. here is my disk management http://puu.sh/dz5CM/d1920342f8.png it shows 51% right now but earlier it was showing 99% It's not an issue YET but you will eventually shrink D and expand Chow many gb would you recommend i shrink my d: and expand it to c:

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