I is in the process of testing MDT 2013 Update 1 with Windows 10 deployment and found that the settings I used for Windows 8/7 build and capture does not work any more..
I always use in my customsettings.ini:
DoNotCreateExtPartition = YES
Just for creating 1 partition for my capture image.
In MDT 2013 Update 1 there is a different “Format and Partition Disk” disk layout.
The DoNotCreateExtPartition = YES is being ignored
Change “Format and Partition Disk” step in the Task Sequence to:
Now it is working: