macOS User Guide
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Welcome
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Change System Preferences
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Change your desktop picture
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Add your email and other accounts
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Use a screen saver
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Change the picture for you or others in apps
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Set up other users on your Mac
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Set up Screen Time for yourself
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Change the system language
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Make it easier to see what’s on the screen
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Use accessibility features
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Run Windows on your Mac
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Use Continuity across your devices
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Stream audio and video with AirPlay
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Use your iPad as a second display
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Hand off between devices
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Insert photos and documents from iPhone or iPad
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Insert sketches from iPhone or iPad
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Copy and paste between devices
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Use Apple Watch to unlock your Mac
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Make and receive phone calls on your Mac
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Control accessories in your home
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Send files between devices with AirDrop
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Use AirPods with your Mac
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Manage cookies and other website data in Safari
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Use Private Browsing in Safari
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View privacy reports in Safari
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Understand passwords
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Reset your Mac login password
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Use keychains to store passwords
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Set up your Mac to be secure
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Guard your privacy
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Use Sign in with Apple for apps and websites
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Protect your Mac from malware
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Control access to your camera
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Find a missing device
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Resources for your Mac
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Resources for your Apple devices
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Copyright
Turn Bluetooth on or off on Mac
Turn off Bluetooth when you’re in places where radio communication may be prohibited, such as in an airplane or a hospital.
Ask Siri. Say something like: “Turn Bluetooth off.” Learn how to ask Siri.
On your Mac, click the Bluetooth status icon
in the menu bar. If you don’t see the Bluetooth status icon, choose Apple menu
Click the switch to turn Bluetooth on or off.
Note: If Bluetooth is turned off, features such as Continuity, Instant Hotspot, and Handoff may not work between your Mac and other devices.
You can also turn Bluetooth on or off in Bluetooth preferences. If you’re using an external USB Bluetooth adapter, Turn Bluetooth On or Turn Bluetooth Off may not appear in Bluetooth preferences. If you don’t see these options, unplug the adapter to turn off Bluetooth.