Have you tried 'Reset to factory defaults'?
Make sure harddrive mode is in same mode you used earlier, be it ACPI or the other one.
Also make sure you are booting from the right harddrive, play with boot sequence in BIOS.
When you flash a motherboard bios with a new firmware update.
The bios in most cases is reset back to factory defaults.
You need to go into the bios and set the interface type that was used when you first installed windows. Options are Sata, or Ahci mode. for the interface type of the hard drive and cd rom drive.
Have you tried 'Reset to factory defaults'?
Make sure harddrive mode is in same mode you used earlier, be it ACPI or the other one.
Also make sure you are booting from the right harddrive, play with boot sequence in BIOS.
I did reset to factory setting by holding down the CMOS button foe quite a while and then I'm trying to switch to the mode it was suppose to be but I don't remember. When I go to Sata information every port is empty for some reason I'm trying to do what you told me but it's not working.
To Calvin7 yes, my brother gave a hard drive from a desktop he no longer uses or needs anymore and it had windows xp so every time it try to boot to xp it just showed xp and went to the legacy mode (safe mode, start windows normally and stuff)