windows XP Cant Detect Hard disk,Vista Preinstalled laptop !

Many beginners have this problem that Windows XP cd cant detect hard Disk in recent Vista installed Sata Hdd laptops.

                           Recent laptops use Sata Hdd in ACHI mode and Windows XP SP2 disk cant detect the Hard Disk in ACHI mode.You need to Change BIOS settings to Disable ACHI mode or SATA mode.

• Enter Bios.
• Depends on Your manufacturer you can find IDE or SATA mode for your HDD
• Change the mode to "IDE" OR disable Sata.
• press F10 Key and Reboot

I will try to provide specific instruction for some major manufacturers.