Windows 2008 R2 - server blue screens after sysprep with generalize

Hi folks, 

I am having an issue with a Windows 2008 R2 SP1 - Enterprise Edition that i am working on.

The server is a HP BL460c Gen9 and is configured to boot from SAN.

I have about 100+ servers to deploy with this image but when i run sysprep with generalize it blue screens on the following: 

1. Safe mode hangs on bchtsw64.sys and crashes.
2. If load the system registry hive and bypass bchtsw64.sys it then hangs and crashes on bfad_up.sys
3. If I bypass both bchtsw64.sys & bfad_up.sys it then hangs and crashes on disk.sys

if i do not use the generalize switch it works fine but obviously i need some of the items that the generalize does. 

I believe that the issue is that the generalize step removes items relating to the above drivers. 
Any help would be greatly appreciated here...

Many thanks. 

Steve.