Because I just got an external HDD, I transfered all the data from my D:\ partition to my external. Having no more reason to keep the D:\ partition, I deleted it in the hopes that the space allocated to it would be transfered to my only remaining partition, my primary OS partition C:\. Unfortunately, I'm now left with "unallocated space" from the deleted partition and I can seem to move that space to my primary C:\ OS partition. What should I do? Thanks in advance.