Windows 7: How to create single User Account in Windows 7 pro using Sysrep

hope you can help us guys...



it's almost 2 weeks to find a solution for this minor problem we are creating image using SYSREP and we want to put one single after we create the image(dummy user is default) but after we tried to install on a pc...we noticed that it has a Two User Accounts which was the "Dummy" and the "Test"(we type the username to continue installation) account appeared on the logon screen.

what we want is single user just like you buy a new laptop "Out of the Box"..all you need to do is select the language and type the name and etc...etc.. then it will create default user profile.

we were wondering how we can make a sysrep just like the new laptop "out of the box" installation to make easier for us.