I can provide any further information if it is required but here is what I know.
Awhile ago, I partitioned my hard drive so I could install Linux (Ubuntu) on the partition and have two operating systems but I wasn't familiar enough with how to use Linux to make any use of it so I reinstalled windows to try and reformat the computer to it's previous state. It worked but the drive was still partitioned. For some time I used the extra partition just as another drive but now I want a single drive on my computer. I keep running into this error, "There is not enough space on the disk(s) to complete this operation." I first ran into this error when I tried deleting the partition but after no success there I tried to reformat the partition so I could use it again but now when I try that it won't work plus it no longer allows me the option to use the drive letter previously selected. An example is when I reformat the drive as letter D the next time I try to reformat that letter is no longer available. Here are some screen shots of my predicament.
My disk management window --> imgur: the simple image sharer
when I try to finish the formatting --> imgur: the simple image sharer
Right clicking the partition to try and delete --> imgur: the simple image sharer
Confirmation message box for deleting partition --> imgur: the simple image sharer
Error when I confirm deletion of partition, see previous error.
This has made 102gb on my hard drive non operational so I would like any help anyone can offer.