Hey folks We have some unattended install process already started but I've reached a bit of a problem and can't figure out where to look for answers. We are using Windows PE and LANDesk and some custom scripting to do unattended installs over the network. On machines with SATA drives, we can put the drivers in our PE image or boot in ATA compatability mode. We install the Windows image onto the machine and copy over the drivers on a per-machine basis. The Windows image itself has no useful drivers on it, but it is a post-sysprep image. The machine will work fine in ATA compatability mode - it will boot, scan through the drivers, add them to the OEM PnP list, run sysprep and reboot. But when I turn on AHCI mode, the machine will simply reboot instead of starting Windows. I really need to avoid changing the Windows image itself - we have tons of hardware variations and need to keep this whole process as hardware indepndent as possible. How can I use sysprep or some other tool to force the machine to install the AHCI drivers even though it won't detect the hardware for it - so I can boot off of it?