Yes, my SCCM is sitting on Windows 2012 + Windows Assessment and Deployment Kit (contains WinPE 4.0). WinPE has WinPE4.0 HP drivers and WIM without HP drivers, but task sequence has Apply Drivers step wich contains HP drivers. What WIM contains HP drivers or not is not important, because WinPE doesn't start. In my opinion need to focused on WinPE booting.