WIM Drivers
I am using WIM files, and standard packages and a powershell script to apply the drivers to the OS inside Windows PE. The steps to create what i have done listed below.
Creating the WIM File
I am using an Optiplex 7020 Micro in this example. Other driver packs can be downloaded from below.
Dell Command | Deploy Driver Packs for Enterprise Client Operating System Deployment
Once your driver pack has been downloaded, extract to it a folder on your computer.


Open a Powershell window
New-WindowsImage -ImagePath 'C:\Drivers.wim' -CapturePath 'C:\Optiplex-7020-Micro' -Name 'Optiplex 7020 Micro'