Product keys are gatekeepers that prevent widespread piracy, but if there’s one drawback to them, it’s the fact that they can be misplaced quite easily. There’s a good chance your Windows product key is deeply buried within an email inbox full of spam, entombed in the dark recesses of your closet, or otherwise inaccessible. Thankfully, Windows users can easily extract the key from the Windows Registry using a product key finder in less than 15 minutes.