To deauthorize iTunes or Music, open your iTunes or Music app.Check out our step-by-step guide on how to back up your Mac with Time Machine to find out more. So, it is important that you back up any important data on an external hard drive first. When you reset a Mac to factory settings, it will erase all your files, apps, settings, profiles, and other information.It is also recommended that you reset your P-RAM (or NVRAM) and unpair your Bluetooth devices as well. Then you should deauthorize iTunes or Music, and log out of iCloud, Messages, and FaceTime. What to Do Before You Reset Your Macīefore resetting your Mac, you should back up all your important files. Here’s how to reset your Mac computer to factory conditions in two ways, and what you should do before resting your Mac.

Or maybe your Mac has been acting sluggish lately and you want to get it working like new. Perhaps you want to sell, trade, recycle, or give it away, and you don’t want your personal information getting into the wrong hands. There are many reasons why you might want to factory reset your Mac computer.

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