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macOS User Guide
- Work across devices using Continuity
- Use iPhone as a webcam
- Use iPhone with Desk View
- Stream audio and video with AirPlay
- Use one keyboard and mouse to control Mac and iPad
- Hand off between devices
- Unlock your Mac with Apple Watch
- Make and receive phone calls on your Mac
- Sync music, books, and more between devices
- What is Family Sharing?
- Set up Family Sharing
- Add a user or group
- Set up Screen Time for a child
- Share purchases with your family
- Watch and listen together with SharePlay
- Share a Photo Library
- Collaborate on projects
- Find content shared with you
- Find your family and friends
- Play games with your friends
- Resources for your Mac
- Resources for your Apple devices
If you can’t eject a disk on Mac because an app is using it
You may not be able to eject a disk from your Mac if one or more apps are using it. In some cases, a warning message may identify the app that is using the disk. You can also press and hold the Command key and press Tab to see which apps are open and switch to a different app.
Quit the apps that are using the disk, then try to eject it again.
If you can’t quit an app, close the documents that are on the disk you want to eject, then try to eject the disk again.
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