If the message recommends a solution, such as redownloading the installer and trying again, please try that first. If the message says that your Mac doesn't have enough storage space, find out how to free up storage space. The other solutions, starting with the easiest, are listed here. Even if you're not installing macOS from the internet, the installer needs the internet to get firmware and other information specific to your Mac. Make sure that your Mac has a working and stable internet connection. Install while your Mac has started up in safe mode. To start up in safe mode, determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:
Use Disk Utility to repair your startup disk. Then try updating or installing macOS again. Install while your Mac has started up from macOS Recovery. This will give you the latest version of the macOS currently or most recently installed. To start up from macOS Recovery, follow the appropriate steps: Turn on your Mac and continue to press and hold the power button until you see the startup options window. Click the gear icon labelled Options, then click Continue. Turn on your Mac and immediately press and hold Command (⌘)-R until you see an Apple logo or another image. If you're asked to select a user you know the password for, select the user, click Next, then enter their administrator password. When you see the utilities window in macOS Recovery, select Reinstall macOS, then click Continue and follow the onscreen instructions. Find out more about using macOS Recovery to reinstall. Owners of Apple and Beats products may obtain service and parts from Apple service providers, including Apple Store locations and Independent Repair Providers, for a minimum of 5 years* from when Apple last distributed the product for sale. Service and parts may be obtained for longer, as required by law or for up to 7 years* , subject to parts availability. Additionally, Mac laptops may be eligible for an extended battery-only repair period for up to 10 years from when the product was last distributed for sale, subject to parts availability. Apple discontinues hardware service for certain technologically-obsolete products. Your product is supported by ongoing OS updates and backed by a network of more than 5,000 Apple-certified repair locations that you can count on if something unexpected happens. * In some countries and regions, certain service parts may not be available due to local laws or material restrictions. Apple products are designed to be long-lasting. They are made of durable materials that are heavily-tested in our Reliability Testing Lab. The longer you use your product, the better it is for the planet. For more information about Apple and the environment, visit www.apple.com/environment. Products are considered vintage when Apple stopped distributing them for sale more than 5 and less than 7 years ago. For products purchased in France, see Statutory Warranties of Seller and Spare Parts (PDF). Owners of a new iPhone or Mac laptop purchased after December 31, 2020, in France, may obtain service and parts from Apple or Apple service providers for 7 years from the date the product model was last supplied by Apple for distribution into France. Find out which products are vintage:
Products are considered obsolete when Apple stopped distributing them for sale more than 7 years ago. Monster-branded Beats products are considered obsolete regardless of when they were purchased. Apple discontinues all hardware service for obsolete products, and service providers cannot order parts for obsolete products. Mac laptops may be eligible for an extended battery-only repair period for up to 10 years from when the product was last distributed for sale, subject to parts availability. |
