
Your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.Īfter installation is complete, your Mac might restart to a setup assistant. If you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Moisture should not be allowed through these openings since it can short out your computer if it gets inside.When the new owner starts up the Mac, they can use their own information to complete setup. Doing so increases the likelihood of getting moisture into the openings at the bottom or along the sides.

This significantly increases your odds of getting water into the machine and causing permanent damage.

A soaked cloth is more likely to drip excess water into your MacBook Pro, which could cause severe damage to your computer. As a result, tap water is more likely to cause a short circuit than distilled water.

Tap water contains minerals, and some of these minerals can be conductive. For best results, use distilled water instead of tap water.Do not use paper towels, dish towels, or other rough cloths. A soft, clean, static-free, fiber-free cloth works best, but most non-abrasive cloths will also work well. Apply a little water to a soft microfiber cloth, making the cloth barely moist.
