Quote: "Most of Hubble's components have redundant back-ups, so once scientists figure out the specific component that's causing the computer problem, they can remotely switch over to its back-up part."

So it's time to do what every gamer does when the rig fails. Switch parts and see who's the culprit. And yes, I do understand the next quote: <"The rule of thumb is when something is working you don't change it," Hertz said. "We'd like to change as few things as possible when we bring Hubble back into service.">

But between having nothing anymore, since Hubble had its last maintenance in 2009 (per quote: "The last time astronauts visited Hubble was in 2009 for its fifth and final servicing mission.") and have something now that definitely would fail later, I'd choose the latter.