Using sysprep without removing drivers:

How to use sysprep without removing drivers:

Configure your answer file to persist the drivers by specifying the PersistAllDeviceInstalls setting in the Microsoft-Windows-PnPSysprep.

 
    true
 

Another way would be to configure the registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\Sysprep\Settings\sppnp set PersistAllDeviceInstalls to 1.