The building's janitor found a note under the door one morning. The handwriting was compact and courteous. It read: "Temporary maintenance. Please leave all valuables in plain view to expedite process." He folded the note into his pocket because some instructions are better left unread. He also, the next day, could not recall whether he had a son or a sister; a photograph on his shelf had become nothing but a smudge. When he climbed the stairwell to protest, his steps were slightly off—one heel striking a step a breath earlier than the other—like a metronome losing sync.

For the majority of users, the on Windows is the most common scenario. Follow these steps precisely.