Implementations of the present invention allow software resources to be duplicated efficiently and effectively while offline. In one implementation, a preparation program receives an identification of a software resource, such as a virtual machine installed on a different volume, an offline operating system, or an application program. The preparation program also receives an indication of customized indicia that are to be removed from the software resource. These indicia can include personalized information as well as the level of software updates, security settings, user settings or the like. Upon execution, the preparation program redirects the function calls of the preparation program to the software resource at the different volume (or even the same volume) while the software resource is not running. The preparation program thus can thus creates a template of the software resource in a safe manner without necessarily affecting the volume at which the preparation program runs.