I recently added another disk and expanded my RAID array to make more room for my C:. All went well and Windows saw the new space. I extended the disk through Disk Manager, I got a non-desriptive error message at the end of the wizard; which I unfortunately didn't write down. Now my C: properties shows the old size but Disk Manager and diskpart show the new size. I rebooted and it didn't help. Am I missing something here? I read a half dozen articles describing the process and it is supposed to be very straightforward.