Restricted software and hardware usage on a computer

One or more computer-readable memories comprising a computer program that is executable by a processor of a sealed computer with restricted functionality to:

• obtain a digital key from a provider of the sealed computer, the digital key sufficient to unrestrict the functionality of the sealed computer wherein the restricted functionality was previously installed on the sealed computer, and wherein without the digital key the sealed computer can only execute functionality indicated by a lockdown mechanism of the sealed computer, and wherein the lockdown mechanism prevents additional functionality from being installed on the sealed computer;
• and
• use the digital key to unrestrict the functionality of the sealed computer wherein the using the digital key to unrestrict the functionality comprises unlocking a full version of an operating system of the sealed computer and disabling the lockdown mechanism of the sealed computer.