I don’t wish any of you the painful experience of having to take your Mac in for repair. Unfortunately, this does happen on occasion. There are things you should do to a Mac before taking it to Apple or a Service Provider for repair. This article covers how to prepare your Mac for service. It all starts with a good backup. Also, the article covers FileVault. I don’t use that feature, but if you do, there is information about how to deactivate it.