http://sharepointmentalnotes.blogspot.co.uk/2012/10/convert-vmware-disk-from-auto-growth-to.html

In my situation it was:

vmware-vdiskmanager -r “E:\VMs\Windows 10 x64\Windows 10 x64.vmdk” -t 2 “E:\VMs\Windows 10 x64\New Drive\Windows 10 x64.vmdk”

-t 2 (is preallocated virtual disk)