Disk Management console showing the newly allocated space. The Unallocated space was renamed New Allocated Space and assigned a drive letter. Read: How to Create New, Resize, Extend Partition ...

Figure 5: The partition has been deleted. Now, go ahead and close DiskPart and relaunch the Disk Management Console. With the OEM partition removed, it is now possible to extend the C: volume.

It’s very likely that in a virtualized environment you will over/under provision resources to a VM. When it comes to shrinking or expanding a virtual hard disk things get a little complicated.