This problem may occur if your computer uses an add-on PCI adapter that has an integrated PCI-to-PCI bridge and graphics adaptor. An example of this type of device is a remote access adapter that has multiple, integrated devices such as graphics and integrated device electronics (IDE) or Advanced Technology Attachment (ATA) controllers.
This problem occurs because the ISA Enable and VGA Enable bridge control registers may become incorrectly set. Therefore, the boot controller may not be assigned the correct PCI resources. If the boot controller is not assigned the correct PCI resources during the startup process, the hard disk from which Windows starts becomes inaccessible. Therefore, you experience the Stop error that is mentioned in the "Symptoms" section.
To resolve this problem, follow these steps:
1. Use the Recovery Console method as described in Microsoft Knowledge Base article 875350 to uninstall Windows XP SP2.
For more information about how to uninstall Windows XP Service Pack 2 by using the Recovery Console, click the following article number to view the article in the Microsoft Knowledge Base:
) How to remove Windows XP Service Pack 2 from your computer
2. Install hotfix 890463.
3. Reinstall Windows XP SP2.
This is what Microsoft has to say on the error, since you don't have the Install disk you probably don't have the recovery console accessible. Click below to get it...