A method and system for storing a running image of an operating system on a removable operating system module. The module is first inserted into a first computer system. The operating system is installed on the first computer, an execution of the operating system is initiated, and a running image of...http://www.google.de/patents/US7225440?utm_source=gb-gplus-sharePatent US7225440 - System and method for manufacturing and updating insertable portable operating system module
