We haven't used Sysprep yet but we probably will. This will impact procedures for using Sysprep.
Opportunistic Locking May Not Be Granted If Windows Is Installed by Using Sysprep
The workaround is to delete the data from this Value after running Sysprep on the master but before shutting it down.
Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet \Services\lanmanserver\parameters
Value: GUID