Restart your computer: hold the power button > select Restart when it appearsĢ. (Make sure you backup your computer and log out of your accounts, such as iCloud and iMessage, before doing so.)ġ. This means factory resetting the computer and re-installing the latest macOS software. When you’re looking to sell or trade-in your computer, whether it’s an iMac or a MacBook, it’s a good idea to return it to its factory settings.
