If you have VMware vCenter – Click Migrate For those of us who do not have VMware vCenter: 1. Shutdown the VM 2. SSH to the ESXi machine and type: vmkfstools -i /vmfs/volumes/datastore1/NAME-OF-VM/NAME-OF-VM.vmdk /vmfs/volumes/datastore1/NAME-OF-VM/NAME-OF-VM-thin.vmdk -d ‘thin’ -a lsilogic Once the copy is done, go into the settings of your VM, delete the hard disk, and ...