Unallocated Disk Space

I recently bought a small laptop to do admin work while out-of-town. The computer came in with a 100 MB partition allocated to Recovery. That didn't leave me enough room for a Windows upgrade. There was nothing in the partition so I created an external Recovery, deleted the partition and expected to use the space as part of the primary drive. I am now left with an "unallocated" partition(?) on the primary drive that I'd like to merge into the primary space. Is this possible? If so, how would I go about doing that?

I've added an image of my Disk Management screen if that'll help.

Thanks - Dave

That still wont help do you have a windows.old folder on drive c as that can be 30 gig and can be removed