[Help] my windows is gone and partition has no free space

[7wanderer]

recently i tried to install linux ubuntu and replace win7 on my dell 1420, then i choose the option "replace windows7" , but i cancel it (i'm not installed ubuntu yet), and i restart my laptop, and then the windows is gone, then i try to reinstall the windows, but when on the partition menu, the C: and D: is gone! There are just two partition and no free space at all, the only option i can choose is delete the partition. Does anybody here can help me to fix this problem without delete the partition? Cuz there are so many files that very important
Sorry for bad English

 

[bigmck]

Does your PC boot now? What is on your Hard Drive that is filling it up?