how do i fix an acpi.sys error while installing windows xp on a computer thats running windows 7

jhackett49
jhackett49 used Ask the Experts™
on
I'm installing windows xp pro on my new computer that came with windows 7 ultimate.
When starting setup with the xp disc i get an error sayin that acpi.sys may be corrupt
and press any key. Setup has failed it tells me. Do I need to update the BIOS before starting to
get past this? Does the BIOS need to be updated for windows XP to run? If so how do I update the BIOS before
installing XP? If this is not BIOS related how do I fix this? Thank you!
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Commented:
What XP SP version is your disk?

Slipstreaming the latest SP onto the disk might help.
http://www.maximumpc.com/article/How-To--Slipstream-your-XP-installation
dbruntonQuid, Me Anxius Sum?  Illegitimi non carborundum.

Commented:
Memory test first.  That could be the problem but not guaranteed.

Get the UBCD http://www.ultimatebootcd.com/

Download links are the icons at the top of the page above Overview.  Browse the page and see what utils are there for you.  Check the memory utils especially.

Make the CD and boot from it.  Run the memory tester first - memtest -  and let it do two to three passes through your memory.  Memory could be the problem so get that test done first.
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Commented:
Also, if you are planning to dual boot with W7, you will probably need to repair the W7 bootloader after XP is installed.

This works good for that:

bcdedit (Vista/W7 boot.ini replacement)
http://www.sevenforums.com/tutorials/2676-bcdedit-how-use.html

Or if you prefer a GUI interface:

EasyBCD - A GUI for BCDedit
http://neosmart.net/dl.php?id=1
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Author

Commented:
Its XP Pro SP 2

Author

Commented:
I'll be using only XP. I'll partition the disc

Author

Commented:
Im checking memory now. Thanks

Author

Commented:
its version 2002
I have run into this problem many times.
First try and find a xp cd with sp3 and try that one.
if that does not work, then go into the bios and turn of acpi 2.0, if it is a newer motherboard there is an option in the bios to turn this off. Do you know which mfg. your motherboard is?

I have also found that updating your motherboard to the latest bios fixes that error as well.  Most newer motherboards will let you update your bios from within the bios itself, or have an option to press like F8   or F10 on the post screen right after you turn on your pc, this will invoke a flash utility that lets you update your motherboard from a floppy or usb drive.

Author

Commented:
thanks intowishin. this is a brand new dell computer so the MB has got to be brand new or close to it. I'll try the BIOS thing. that could be it.Ill let you know
Top Expert 2010

Commented:
Go to BIOS and change SATA mode to IDE and save/restart.

Author

Commented:
Coral47. Wow slipstream? thats cool. just reding up on it and will create my own setup disc with RAID 1 on it. Thanks
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Commented:
: D   It is one of the neater "tricks" one can do, nowadays.

Author

Commented:
Thanks Senad. Will do
ACPI is Advanced Configuration and Power Interface which  can be found in Phoenix BIOS or in HP systems. The file for which you are having an error is actually a system file which contain appropriate driver for ACPI HAL. Do the problem is may be that file is incompatible or could not be properly read from the disk.  In my opinion you have to troubleshoot your problem in following manner.
1. Check Win XP SP3 CD
2. Check CD Rom
3 Check your Bios by turning of ACPI and Set Plug and Play OS to 'No'.
4. Update your BIOS with the latest version
5. Insert WinXP CD and press F5 instead of F6.
This will take you to a separate menu of Hardware Abstraction Layer's where you can choose an appropriate HAL that supports ACPI. The choices will be:
ACPI Multiprocessor PC
ACPI Uniprocessor PC
Advanced Configuration and Power Interface (ACPI) PC
Compaq SystemPro Multiprocessor or 100% Compatible PC
MPS Uniprocessor PC
MPS Multiprocessor PC
Standard PC
Standard PC with C-Step i486
Other

Author

Commented:
sened the sata settings has only RAID and AHCI?

Author

Commented:
farjadarshad ill try it

Author

Commented:
ACPI in setup has options of S1 and S3 only. I believe as some of you have said that the problem is that RAID is running on the computer hence the differant ACPI settings. Any suggestions on changing the ACPI settings?
The AHCI mode for winxp should be disable because disabling it gives maximum compatibility with older hardwares. You can select SATA settings rather AHCI mode. For a complete article refer to this

http://farjadarshad.blogspot.com/2009/04/advanced-host-controller-interface-ahci.html
Top Expert 2010

Commented:
it must have other settings as well I think....

Author

Commented:
Yes Ithink it must. I will find the other settings. Thanks senad
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Commented:
Just so future reader don't get confused:
ACPI (Advanced Configuration and Power Interface) -- relates to Power Management.
AHCI (Advanced Host Controller Interface) -- relates to disk drives.

_

Commented:
Is there anyway to disable S1 and S3 while you are installing?
note: if there is an Option that says something like "OS is ACPI Aware", leave it Enabled. Or the system will act like an old AT system, instead of an ATX.

Author

Commented:
i used nlite to slipstream around the error but the xp setup is now choking on the Format of the hard drive. Does anyone know how to bypass that section of windows setup? Thanks coral47 for suggesting the slippstream work around.

Author

Commented:
the original error was fixed but now there's a new error in the setup
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Commented:
Thank you much.

>> ...choking on the Format

You might need to Delete the partitions, first. W7 uses a hidden partition (about 200MB).
If XP will not do it, then use @Active Killdisk or the Manufactures utilities, to zero-fill the drive and try again..

Both can be found on Ultimate Boot CD
www.ultimatebootcd.com    (under Hard disk Tools)

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