To clean your computer screen safely, turn off and unplug your device. Use a soft, lint-free microfiber cloth slightly dampened with water or a 50/50 mix of water and isopropyl alcohol. Gently wipe the screen in circular motions without pressing hard. Avoid spraying liquid directly on the screen or using paper towels, glass cleaners, or abrasive materials, as they can damage the display. Dry with a clean, dry microfiber cloth.