Registry change disappears after reboot

[dporrelli]

I need to add string to the follow :
HKEY_LOCAL_MACHINE\Hardware\DeviceMap\SCSI\SCSI Port 3\SCSI Bus 0\Target ID 6\Logical Unit ID 0
When I add this and reboot the new string value that I added is gone.
This Server is on SP2 with all the updates etc...
This is a stand-alone system, it is not on the domain and at the moment isn't even sitting on the network.
Everything I've looked at so far seems to point to a GPO, I ran RSoP but can not see anything wrong (every setting is pretty much set to not defined just now).

Thanks

 

[paella33]

Could it be that windows will scan the hardware on every boot and set the registry settings?

 

[dporrelli]

Thanks for that. If that is the case, is there anyway to disable this?