We create our VHDX using the WIM to VHD script at https://gallery.technet.microsoft.com/scriptcenter/Convert-WindowsImageps1-0fe23a8f. The resulting VHDX can be used to created a simple test VM in Hyper-V. When we boot this test VM we find both Windows Updates still not configured (value 0) and CEIP key does not exist. If we take the same VHDX and deploy a VM from it using SCVMM 2012 R2 Rollup 4, Windows Update is enabled and CEIP is also enabled.
I hope this is a configurable setting either in the VM template or .. somewhere - But I cannot find it! Can someone gently point me to the right SCVMM object and property?