I was emailed this question recently “Is it possible to make changes to settings in the registry of an ImageX .wim file or do I have to deploy the .wim file, make the changes and then recapture the image?”
From that blog post I have listed the five basic steps necessary:
1. Mount the WIM file to a local folder using ImageX:
C:\>imagex /mountrw install.wim 1 c:\mount
2. Load the registry hive you need. Let's mount HKLM\Software:
C:\mount>reg load HKLM\test c:\mount\windows\system32\config\software
3. Open Regedit to make changes or use Reg Add from the command line.
4. Unload the reg hive.
C:\Windows\system32>reg unload HKLM\test
5. Unmount the image.
C:\ImageX>imagex /unmount /commit c:\mount
Amazingly simple, no??