

When reconnecting to a Bluetooth keyboard, you're asked to choose a language. If the accessory doesn't connect within 30 seconds, turn the accessory off and back on. If it needs to reconnect to a Bluetooth accessory such as a keyboard or mouse, you might be asked to turn on the accessory.

Apple recommends isopropyl alcohol for both cleaning and disinfecting Macbooks. Re-dampen as needed and dry with a different lint-free cloth when you’re done. Lightly dampen a lint-free cloth with it and buff out the smudges and fingerprints. For tougher smudges and fingerprints - Apple recommends 70% diluted isopropyl alcohol.Don’t overdo it, though, as that can cause damage. You should be able to get out most smudges and fingerprints with a firm (but not too firm) buffing.Take a lint-free cloth or microfiber cloth and wipe down the screen.Power down your Macbook and disconnect it from its charger.Here is the Apple-approved method for cleaning your Macbook. It’s much easier, but it also may require some elbow grease. You generally don’t want to use any household cleaners because the Macbook isn’t designed to work with cleaners like that.

Apple actually has a tutorial for this, and it’s pretty easy to follow.
