How to sysprep a Windows 2008 R2 Server or Virtual Machine#

Once the server is built, simply logon to RDP and go start and type:

sysprep

This will bring up:
%WINDIR%\System32\Sysprep

Simply double click on the sysprep application.

If you are looking to create a new SID for this server, ensure select "Enter System Out-Of-Box Experiance (OOBE)and tick the box "Generalize".

Be aware that you will have to re-do any network settings once this has completed.