Came across this thread looking for help and didn't see any solid answers, here is what I did to get the newest nvidia drivers (341.44-desktop-win8-win7-winvista-64bit-international-whql) injected into my win 7 64 bit .wim. Im sure there are multiple ways to get the same outcome but here is what I did. Not that the .inf directory will more than likely be different depending on which card you have, however you can find out the correct directory easily by checking driver details. 1) Get a test machine to install your drivers on. 2) Once installed go to C:\Windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_neutral_33f2a1cfbba73118 (The way I found this folder was by looking at driver details and the file that the driver was using) 3) Grab that entire folder 4) Mount the .wim you are injecting your drivers into with dism /mount-wim /wimfile:*wim_file_path*_file /mountdir:*your_mount_dir* /index:1 5) inject drivers (the folder you grabbed from your test machine) dism /image:*image_path* /add-driver /driver:*driver_path* /recurse 6) unmount your wim commiting changes and add to wds or however you are applying your .wims. Should be good to go.
