The eternal paradox of computer maintenance! Two buttons, both promising destruction. Left button: "Clean your PC and break it." Right button: "Do not clean your PC and break it."
That sweaty forehead moment when you realize computers are basically quantum objects - they exist in a superposition of "about to break" regardless of what you do. Cleaning registry files? Break. Ignoring that sketchy driver update? Also break. The universe has exactly one constant: your PC's desire to spectacularly malfunction at the worst possible moment.