The following article describes the creation of unattend.xml (answer) file for OS deployment.

http://briandesmond.com/blog/how-to-sysprep-in-windows-server-2008-r2-and-windows-7/

Some common terminology:

Windows System Image Manager’ (WSIM, or Windows SIM) is a component of the Windows AIK (Windows Automated Deployment Kit) or Windows ADK (Windows Assessment and Deployment Kit). A good read is the TechNet article ‘Best practices for Authoring Answer Files’ to avoid common mistakes. Likewise, ‘Unattended Windows Setup Reference’ is a handy reference for setting definitions and proper syntax.

Audit Mode is used to customize a reference image prior to capture. However, you would not capture an image that is in Audit mode, as it must be configured to boot to Windows Welcome (OOBE) before capture of the image. See ‘Customize Windows in Audit Mode’ for more details.

OOBE stands for ‘Out of Box Experience’, and you can automate all of it with an answer file. Including creating a user account.

Example: OIT answer file

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