To clean a computer monitor without leaving streaks, start by turning off your display and allowing it to cool down completely. Next, use a soft, dry cloth to wipe away any loose dust or debris from the screen surface. For more thorough cleaning, you can dampen a microfiber cloth with distilled water, but make sure to avoid getting any liquids on the monitor's electrical components or bezels. Gently wipe the screen in a horizontal direction, using straight even strokes to remove any stubborn stains or smudges. If necessary, use a 50/50 solution of water and white vinegar on a clean microfiber cloth to remove any tough streaks or marks. However, be cautious not to apply too much moisture, as this can damage the monitor's screen coating. Avoid using harsh chemicals, abrasive cleaners, or household cleaning products, as these can leave behind residue or damage the display. Once you've cleaned the entire surface, use a dry section of your microfiber cloth to wipe away any excess moisture and inspect the screen for any remaining streaks or marks. For regular maintenance, consider wiping down your monitor with a 50/50 solution every few weeks to prevent dust buildup and maintain clear visibility.