Windows rendered to "uniprocessor free" type after install

[TuMaGoNx]

It happen to me only once, but sadly dont know what cause it..

my PC is E2160 which is dualcore duh LOL

but after install it only use single processor as shown in task manager, but devman tells it has 2 processor. I've change number of proc=2 or computer type=multiprocessor free but still revert back upon restart..

after rebuilt the image again from scratch and reinstall it works normal

Its Unattended WinXP SP3 Pro with all postSP3 2008 updates

any idea if there is a setting that can cause that?

[TuMaGoNx]

I customize it a bit more with nLite, but i have rushed to reinstall it (since it's in my real PC not VM) so I have deleted the master folder including settings file.

does incorrect "ComputerType" in winnt.sif may cause it?

and what about ntoskrnl? ntkrnlpa?

I think this is serious wrong setting that get unnoticed by nLite and my me