"Stop 0x000000A5" Error When You Are Installing Windows XP

When you are installing Windows XP, you may receive the following Stop error:
STOP: 0x000000A5 ( Parameter1 , Parameter2 , Parameter3 , Parameter4 ) The ACPI Bios in this system is not fully compliant to the specification. Please read the Readme.txt for possible workarounds, or contact your system vendor for an updated bios. The bios in this system is not fully ACPI compliant. Please contact your system vendor for an updated bios. If you are unable to obtain an updated bios or the latest bios supplied by your vendor is not ACPI compliant, you can turn off ACPI mode during text mode setup. To do this, simply press the F7 key when you are prompted to install storage drivers. The system will not notify you that the F7 key was pressed--it will silently disable ACPI and allow you to continue your installation."



CAUSE
This behavior can occur if Windows has detected that the BIOS in the computer is not fully compliant with Advanced Configuration and Power Interface (ACPI).

RESOLUTION
To resolve this behavior, contact the manufacturer of your computer to obtain a BIOS that is fully ACPI compliant. To work around this behavior, manually install the Standard PC hardware abstraction layer (HAL):
1.
Restart the computer to restart Setup.
2.
When Setup starts again, press F7 (not F6) when you see the "Press F6 if you need to install a third-party SCSI or RAID driver" screen. Windows automatically disables the installation of the ACPI HAL and installs the Standard PC HAL.