You have several client computers that run Windows 7 Enterprise.
You plan to configure the computers to dual-boot to Windows 8.1 Enterprise by using a native-boot VHD.
You have a VHD file that contains an installation of Windows 8.1 Enterprise.
You need to inject several device drivers into the VHD file.
Which tool should you use?

A.
Bcdboot

B.
Pkgmgr

C.
Dism

D.
Bcdedit

Explanation:
Dism /image:V:\ /Add-Driver /driver:C:\drivers\mydriver.INF
Multiple drivers can be also added with one set of commands, if you specify a folder instead of an .inf file. To
install all the drivers in a folder and all its subfolders, use the /recurse option. For example, at the command
prompt, type:
Dism /image:V:\ /Add-Driver /driver:C:\drivers /recurse
http://technet.microsoft.com/en-us/library/dd799267(v=ws.10).aspx#BKMK_addDrivers