Turn it off, encase it in nanofabricated diamond, and bury it in a deep pit. Destroy the experimental records, retaining only enough information to help future, wiser generations to one day take up again the challenge of building a Friendly AI. Scatter the knowledge in fragments, hidden in durable artifacts, scatter even the knowledge of how to find the knowledge likewise, and arrange a secret brotherhood to pass down through the centuries the ultimate keys to the Book That Does Not Permit Itself To Be Read.

Tens of thousands of years later, when civilisation has (alas) fallen and risen several times over, a collect-all-the-plot-coupons fantasy novel takes place.