error installing windows xp home

i had my computer for almost 8 months or so and when i first installed windows there was nothing wrong... but since i formated yesterday and i tried installing windows again it gave me a blue screen saying :

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."

when i first installed windows i never had this problem... anyone know how i can fix it? thanks alot..... btw im using asus A8N32-SLI delux..... thanks

 

update the bios or hit F7 during Windows install when you get the option for hitting a function key to load scsi drivers...

 

i tried pressing F7... but it gave me another blue screen saying about if i had newly installed harddrives or anti virus plz remove..... and if i press F7 i dont even pass the formatting.....

 

and how do i update my bios without having to go into windows? cause right now i dont have windows installed... due to my problem and i dont have a floppy drive...

 

okay ill give that a try thanks !