A computer located outside of an organizational computing environment is remotely prepared and configured to work in the organizational computing environment. A hypervisor operating system is installed and replaces the primary operating system of the computer, and the primary operating system, virtual software appliances (VSA) and virtual machines (VM) can execute as processes of the hypervisor. The hypervisor is configured to establish secure connection with organizational computing environment and to receive from it organization-configured image software for configuring the compute to work in the organizational computing environment. The secure connection can also be used for remote maintenance of the computer even when the computer operating system is faulty or inactive.