I have a VM that shows that it's using 22GB; Windows (right click on the C drive). vCenter says that it's using 45GB. Any idea about the discrepancy?
Are these full clones, linked clones, or instant clone desktops. Also are you using anything like appvolumeS?
This particular one is a full clone on a VSAN. I cloned the master image (100 GB thin provisioned) to VMFS and that also showed the same storage size discrepancy.