You have two Autounattend.xml files (answer files) that can be used in an unattended installation of Windows Vista. One Autounattend.xml file is in the root directory of the Windows Vista installation disc. The other Autounattend.xml file is in the root directory of a USB flash drive. When you perform an unattended installation of Windows Vista, the installation uses the Autounattend.xml file on the Windows Vista installation disc instead of the Autounattend.xml file on the flash drive. You expect the installation to use the file on the flash drive according to the implicit order of the search paths.

When you use an Unattend.xml file to install Windows Vista, the installation may fail. When this issue occurs, an error message that resembles the following may be logged in the Setuperr.log file:

PnPIBS: Error 0×3 occurred while enumerating the files and subdirectories. [gle=0x00000003]

When you perform an unattended installation of Windows Vista, you may receive the following error message during the generalization phase of the installation process:

No disk
There is no disk. Please insert the disk into drive.

This problem occurs when the Setup program searches for the answer file (Unattend.xml) on an empty floppy disk drive.

Consider the following scenario:

• You use a Windows Deployment Services (WDS) client unattended file to try to deploy Windows Vista on a client computer.
• The Windows Vista installation fails.

In this scenario, the WDS client unattended file, WDSClientUnattend.xml, may remain on the hard disk of the client computer.

Note: The WDSClientUnattend.xml file may contain sensitive information such as domain credentials or a product key.

In unattended installations of Windows Vista that have multiple partitions on the hard disk drive, the first partition is not assigned driver letter C as expected. Also, Windows Vista is installed on a different partition.

You try to use Microsoft Windows Preinstallation Environment (Windows PE) 2.0 together with an unattended XML file to install Windows Vista from a network share. However, Setup does not finish. Additionally, you receive the following error message:

Windows cannot access the installation sources. Verify that the installation sources are accessible and restart the installation

You perform an unattended setup of an Arabic or Hebrew version of Windows Vista by using an Unattend.xml file. In the Unattend.xml file, you use the RunSynchronous or RunAsynchronous command together with the option to display the command description during the auditUser pass. In this case, the graphical user interface (GUI) window that displays the description for each command is blank. When the same Unattend.xml file is used together with the English version of Windows Vista during the auditUser pass, the descriptions are displayed correctly.