|  | Preparing a Reference Computer Preparing the Hard Disk
After you configure the reference computer, you must use the System Preparation tool, Sysprep.exe, to remove all information that is unique to the reference computer, such as the SID and computer name. By removing this information, you can prevent security problems that could arise if computers have the same SIDs. To run Sysprep.exe, perform the following steps: Restart the reference computer, and then log on as Administrator. If you have not already done so, create a folder and name the folder %systemdrive%\Sysprep (where %systemdrive% is the root of the partition on which Windows resides). Copy the Sysprep.exe and Setupcl.exe files from the Deploy folder on your hard disk or the compact disc to the %system_drive%\Sysprep folder.