One is to start the process of downloading MacOS Catalina from the Mac App Store, but since we used the command line to ignore the update the best approach is to return to the Terminal. To make MacOS Catalina upgrade show up in Software Update again, return to the command line and clear and reset the ignored software updates list with the.

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  1. To share your Mac with someone else, download a remote Virtual Network Computing (VNC) app like Jump Desktop. With full remote access and Mac remote control, the other person — or yourself connecting to another Mac — can have the same level of control as the person using that device. Except for Admin level access, since it's password protected.
  2. Learn how to create and deploy a FileVault recovery key for Mac computers in your company, school, or other institution. If you're using FileVault in Mac OS X Snow Leopard, you can upgrade to FileVault 2 by upgrading to OS X Lion or later. After upgrading OS X, open FileVault preferences and follow the onscreen instructions to upgrade FileVault.

Back up with Time Machine

Automatically back up all your files with Time Machine, which is built in to your Mac, or choose another backup method.

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Create a backup

Store files in iCloud

You can also use iCloud and iCloud Drive to store files, such as your photos, documents, and music.

Set up iCloud and iCloud Drive

Restore your Mac from a backup

When you have a backup, you can use it to restore your files at any time, including after the original files are deleted from your Mac.

Restore from a backup

Prepare your Mac for service

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Making a backup is an important part of preparing your Mac for service, especially because some types of repair might require erasing or replacing your hard drive.

Get your Mac ready for service

How much space do I need for a backup?

To see the size of a specific file or folder, click it once and then press Command-I. To see storage information about your Mac, click the Apple menu in the top-left of your screen. Choose About This Mac and click the Storage tab. For Time Machine backups, it's good to use a drive that has at least twice the storage capacity of your Mac.

Free up storage on your Mac

macOS can save space by storing your content in the cloud. This isn't a backup, but it includes new tools to make it easier to find and remove large or unwanted files before you make a backup.

Use Optimized Storage in macOS

Erase or format a storage device

You can use Disk Utility if you need to erase or format a storage device.

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Learn how to use Disk Utility

Have a question?

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