Here is an article from Johan Arwidmark regarding adding IE11 to your reference image.
Don’t forget to update the unattend.xml.
Also here are the KB Articles not to deploy to the WIndows 7 reference image:
If you get a DISM error, this is usually associated with the updates being added to the OS via offline servicing.
Check the DISM.log folder for the update that is affecting your build. X:\Windows\Logs\DISM.log
This hotfix rollup contains 90 hotfixes that were released after the release of SP1 for Windows 7 and Windows Server 2008 R2.
The hotfix rollup includes the following improvements:
- Network load and the domain controller usage may be reduced. You may not notice any changes in performance until this update is installed on both client and server computers.
- Improves the Windows Management Instrumentation (WMI) components to reduce the CPU usage and to improve the repository verification performance
- Folder Redirection
- Offline Files and Folders (CSC)
- Improves the processing of Group Policies and Group Policy preferences
For more detail and download check out KB2775511