The problem lies in the internal protection system on the HP Compaq CQ40 416TU for not using operating systems other than Windows Vista.
So the manufacture's windows vista.
how to solve the above problem is intregate XP with SATA-AHCI master using nLite

equipment needed to intregate its SATA AHCI among others :

1. NET FRAMEWORK
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2.nLITE
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3. SATA AHCI AMD FOR HP COMPAQ CQ40
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Lets start Creating WINDOWS XP INSTALLER CD with plans to enter the SATA-AHCI Driver AMD in COMPAQ CQ40.
use another computer which existing NERO BURNING ROOM and OPTICAL DISK DRIVE CD-RW

1. install net framework
2. then, install nLite
3. open nLite

- choose location cd windows installer
- choose or create new folder to save it

- nLite will copy file setup windows

- choose driver and bootable ISO ,
- choose SINGLE DRIVER
- SATA driver needed for COMPAQ CQ40 416TU is X86, Click OK ( in the downloader folder). dont choose another driver

- The next stage is Create Iso (ISO definition) or direct burning (direct combustion) to a CDR media to become a piece of Booting XP CD your creations.

Congratulations you have been successful to make your own boot CD WINDOWS XP for HP COMPAQ CQ 40 108 / 104 TU n NVIDIA AMD chipset or even can be used to install on another PC or Notebook.