How to Back Up a Mac

This wikiHow teaches you how to back up the data and files on your Mac to an external hard drive and/or Apple's cloud-based storage service, iCloud. Connect your Mac to a formatted external hard drive. Connect the drive to your computer...

Method 1 of 2:

Using Time Machine

  1. images 1 of How to Back Up a Mac
    Images 1 of How to Back Up a Mac
    Connect your Mac to a formatted external hard drive. Connect the drive to your computer using the cable provided (usually USB, Lightning or eSATA).
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    Images 2 of How to Back Up a Mac
    Click on the Apple menu. It's the
    images 3 of How to Back Up a Mac
    Images 3 of How to Back Up a Mac
    icon in the upper-left corner of your screen.
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    Images 4 of How to Back Up a Mac
    Click on System Preferences. It's in the second section of the drop-down menu.
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    Images 5 of How to Back Up a Mac
    Click on Time Machine. It's near the bottom-center of the window.
    1. For older versions of macOS and Time Machine, make sure the Time Machine switch is set to the "On" position.
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    Images 6 of How to Back Up a Mac
    Click on Select Backup Disk…. It's in the right pane of the dialog box.
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    Images 7 of How to Back Up a Mac
    Click on a disk. Select the external hard drive you connected to your Mac.
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    Images 8 of How to Back Up a Mac
    Click on Use Disk. It's in the lower-right corner of the dialog box.
    1. Check Back Up Automatically in the left pane of the dialog box if you want your Mac to back up at regular intervals.
    2. Check Show Time Machine in menu bar to create a shortcut in the menu bar to Time Machine preferences and backup status.
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    Images 9 of How to Back Up a Mac
    Click on Options…. It's in the lower-right corner of the window.
    1. Check Back up while on battery power to allow Time Machine backups when your Mac is not plugged in.
    2. Check Notify after old backups are deleted if you'd like Time Machine to let you know when it's deleted older backups to make space for newer ones.
Method 2 of 2:

Backing up to iCloud

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    Images 10 of How to Back Up a Mac
    Click on the Apple menu. It's the
    images 11 of How to Back Up a Mac
    Images 11 of How to Back Up a Mac
    icon in the upper-left corner of your screen.
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    Images 12 of How to Back Up a Mac
    Click on System Preferences. It's in the second section of the drop-down menu.
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    Images 13 of How to Back Up a Mac
    Click on iCloud. It's on the left side of the window.
    1. If you're not automatically logged in, enter your Apple ID and password.[1]
    2. To see how much storage you have in your plan, or to upgrade, click on Manage... in the lower-right corner of the dialog box, then click on Change Storage Plan... in the upper-right corner of the dialog box.
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    Images 14 of How to Back Up a Mac
    Check the box next to iCloud Drive. It's at the top of the right pane. Now you can store files and documents in iCloud.
    1. Do so by choosing iCloud Drive in any "Save" dialog box or dragging files to iCloud Drive in the left pane of a Finder window.
    2. Select which apps have permission to access iCloud Drive by clicking on the Options button next to iCloud Drive in the dialog box.
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    Images 15 of How to Back Up a Mac
    Select the types of data to store on iCloud. Do so by checking the boxes below "iCloud Drive".
    1. Check "Photos" if you want to back up and access your Photos on iCloud.
    2. Check "Mail" to sync and store email messages on iCloud.
    3. Check "Contacts" to keep a copy of your contacts on iCloud.
    4. Check "Calendars" to keep a copy of your calendars on iCloud.
    5. Check "Reminders" to keep a copy of your reminders on iCloud.
    6. Check "Safari" to keep a backup of your Safari data, such as browsing history and favorites, on iCloud.
    7. Check "Notes" to keep a copy of your notes on iCloud.
    8. Check "Keychain" to share an encrypted copy of passwords and payment data across the devices signed in with your Apple ID.
    9. You may need to scroll down to see all the selections.
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