When trying to import pre-boot drivers while building/rebuilding a boot disk or PXE configuration, a dialog box opens with: Boot Disk creator could not add the driver '<name of driver>'.
Ghost Solution Suite 3.3.x
Driver folder with the same name already existed in the CUSTOM > drivers folder
Normally, if Bootwiz could not add the driver we run would through document: Manually adding Preboot drivers for Winpe
However, when opening the CUSTOM/drivers folder, a folder with the name of the inf file aleady existed. As a work around add the driver as described in Manually adding prebeoot drivers for Winpe but add a _1 to the folder. For example iastorVD_1