Preboot drivers have been imported to DS through the console. There are no options in the UI to delete previously imported preboot drivers and there is a need to remove one or more of them.
Environment
DS 7.x/8.x
Cause
There isn't a way to remove the drivers through the UI.
Resolution
Log in to the Notification Server/SMP with admin credentials and open File Explorer
Navigate to <ITMS install directory>:\Program Files\Altiris\Deployment\BDC\bootwiz\Platforms\WinPE\<arch>\Drivers\CUSTOM\Drivers
Delete the folder that contains the drivers that are no longer needed
Navigate to Settings > All Settings > Deployment > Packages > Click on 'BDC' then click 'Update Distribution Points'. This will remove the reference to the driver for package servers and update the BDC package
Rebuild any Preboot Configurations that need the driver removed