Problem: Sysprep and Capture task sequence fails when I was capturing Windows 2012 R2 Update.
Go to the Scripts folder Distribution Share and go ahead edit LTIApply.wsf
Add the following below Copy bootmgr section:
If not oFSO.FolderExists(sBootDrive & "\Boot") then oFSO.CreateFolder(sBootDrive & "\Boot") End if
Save LTIApply.wsf and Update Deployment Share and run the Capture Task Sequence again.
It should capture your reference image by then.
According to the from support.microsoft.com this issue affects the Sysprep and capture TS both MDT 2012 Update 1 and MDT 2013.