Microsoft has just updated the following KB Article:
First logon fails with “The universal unique identifier (UUID) type is not supported”
Symptoms:
Assume that you use System Center 2012 Configuration Manager or System Center 2012 R2 Configuration Manager to deploy a Windows 8 or Windows 8.1 image. When a user starts the system that has the image (physical or virtual) and tries to log on for the first time, they receive the following error message:
The universal unique identifier (UUID) type is not supported.
This error message appears at first user logon after initial deployment of the image. However, in some scenarios, later user logons also result in the error message.
After the message is displayed and the user clicks OK, the logon screen is displayed again.
Full details at:
http://support.microsoft.com/kb/2976660