Remember, you'll need to pay $100 (about £69, AU$140) to enroll. Click the 'Start Your Enrollment' to begin and then follow the instructions. You'll need an Apple ID, and provide your basic personal information. If you’re not currently enrolled, then go to the Apple Developer Program enrollment webpage, which will show you everything you need to sign up. To do that, you need to be enrolled in the Apple Developer Program. Once you've downloaded macOS 11 Big Sur, you might want to play with the more cutting edge developments in the OS that aren't available to the public yet. 4.3 Insert the Mac OS X Snow Leopard Disk and after a few seconds. When you see this screen you need to eject the Disk.

4.2 You will see a screen below with the image of a CD with the caption iBoot-Supported. We will be using iBoot for this installation.

How to enroll in the Apple Developer Program 4.1 Insert the boot disk of your choice over here. For information on how to do this, head over to our ultimate guide to backing up your Mac. Whenever you upgrade your operating system we highly recommend backing up the files on your Mac, so if anything goes wrong you can quickly restore your machine to its previous working order.īefore you download and install macOS 11 Big Sur, make sure your Mac is backed up.

(Image credit: Apple) Back up your Mac before upgrading to macOS 11 Big Sur

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