Some basic DISM commands:
Run following command to clean up any previous wims/mounts:
DISM /Cleanup-Wim
To check image info:
Dism /Get-WimInfo /WimFile:C:\images\boot.wim
To check mounted images:
dism /get-mountedwiminfo
Mount .Wim File on your local C Drive:
dism /mount-wim /wimfile:c:\images\boot.wim /index:1 /Mountdir:c:\mount
Adding drivers command:
dism /image:c:\mount /add-driver /driver:c:\drivers\ /recurse
Unmounting image to wim file by running command:
dism /unmount-wim /mountdir:c:\mount\ /commit
Notes
Modify a Windows image using DISM
DISM – Deployment Image Servicing and Management
Use DISM in Windows PowerShell