Getting a Mac looked at is easy with Apple’s Genius Bar in store expert and repair service. But it is often pretty crazy, so you will want an appointment. If your computer is still working, or you can borrow a friends, you can use the Genius Bar Scheduler on Apple.com.
Select the location you’d like to visit.
Click “Reserve” then select the product you want help with. If you pick a computer, it will tell you to make sure to update your software and make a backup.
You will then be presented with some times to choose from.
After you select a “general” time you will then be able to select a specific time. You should arrive 10 minutes early so that you can be sure that a Genius is ready for you.
If you have a ProCare Membership make sure you are signed in, so that you get the most choices of times, and your Genius will have more options when offering you solutions to your problems.