https://technet.microsoft.com/en-us/magazine/hh825626.aspx

 

start /w wdsutil –Export-Image /image:W7SP1 /imageType:Install /imageGroup:W7SP1 /destinationImage /filePath:c:\dism\patchMe.wim /overwrite:yes
start /w dism /mount-wim /wimfile:c:\dism\patchMe.wim /mountdir:c:\dism\mount /index:1
start /w for /R C:\WSUS\WsusContent %f in (*.cab) do dism /image:c:\dism\mount /add-package /packagepath:"%f"
start /w dism /unmount-wim /mountdir:c:\dism\mount /commit
start /w wdsutil –Replace-Image /image:W7SP1 /imageType:Install /imageGroup:W7SP1 /replacementImage /imageFile:c:\dism\patchMe.wim