Sysprep is the Microsoft system preparation tool used by system administrators often during the automated deployment of Windows Server based operating systems. Sysprep is most frequently used in virtualized environments to prepare a system image which will be cloned multiple times.
Typically, a system administrator creates a template for a system build and customizes the operating system to their requirements. During the build process, the Operating System allocates the server with a unique SID (System Identifier). Each time you clone the system image/template, you will also clone the SID.
In a Microsoft Windows Server network, duplicate SIDs can cause problems. Issues such as WSUS incompatability, Volume Licence key activation problems as well errors in Microsoft Office products. Other non Microsoft products such as Citrix do not work correctly on environments with duplidated SID. (more…)