Using a unique name will make this easier.)
You will be searching the registry for the name of the user you use to configure the profile.
The following steps are not supported or recommended by Microsoft but seem to work: Enable Desktop Background The only supported method is built into Sysprep and this method is itself very problematic. The 'Copy To' button is grayed out for all profiles except the default profile. Microsoft does not support copying profiles under Windows 7 and Windows Server 2008.