Click “Install” and wait until the upgrade is done Agree to the software terms and conditions. When the installation window appears, click “Continue” again. When it returns to the former page, insert your USB and click “Continue”. Select “Mac OS Extended (Journaled)” from the list of volume formats and start formatting.į. Open “Disk Utility”, choose your startup disk, and then click “Erase”.Į. Press and hold “Command+R” when you hear a startup ring (or when the screen on your newer Mac device turns black), and hold down the keys until your computer restarts.ĭ. When enabled, Apple’s Time Machine will periodically transfer all files and store data on an inserted external hard drive or on a Time Capsule connected to the network.Ĭ. As long as the disk is available to your Mac, you can use it for Time Machine backups. It also supports Apple’s Time Capsule and backup disks connected over a network as long as the disks support AFPS. Back up everything on your Mac directly to your hard drive, in case the Mac cannot upgrade properly. Time Machine can connect to your Mac and any external hard drive via USB, FireWire or Thunderbolt port. If you have never backed up, let me tell you how important it is. This feature was released in OS X 10.5 Leopard. Time Machine BackupĪpple has its own official backup tool: Time Machine. No matter which way you choose, always remember to back up your data before performing an upgrade. There are two ways to upgrade macOS: directly in Mac App Store, or upgrade using an USB device. You can download it for free via this link. Is on hand to help you out! The all-in-one disk cleaning manager - available for FREE for Windows and Mac - lets you visualize, manage and reclaim your storage space in just one click. No matter which macOS you are using, we suggest you install a disk cleaning tool to keep your Mac clean and organized for better performance.

If you are running OS X Lion (10.7.5) or later, you can upgrade directly to macOS High Sierra. Some features, such as High Efficiency Video Coding (HEVC) encoding and decoding require newer processors and devices, some of which unfortunately cannot run on older devices.

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