During a Proof of concept build for a customer, I have run into a issue where the VMware image Customization is in progress on the start or reboot of a Virtual Machine after deploying from Template.
To remove this, you will need to remove the line SysprepDecrypt from the registry.
HKLM\System\CurrentControlSet\Control\Session Manager\
Delete SysprepDecrypter.exe
Save and reboot.
Ryan Mangan's IT Blog 
I ran into this today. I think one of our guys didn’t let the customization spec finish completely.
Thanks for this post. It really helped me out today.