macOS User Guide
- Welcome
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- Continuity
- Hand off between devices
- Insert photos and scans from iPhone or iPod
- Copy and paste between devices
- Unlock your Mac with Apple Watch
- Make and receive iPhone calls in FaceTime
- Get SMS texts from iPhone in Messages
- Control accessories in Home
- Send files between devices with AirDrop
- Use AirPods with your Mac
- Stream content to Apple TV
- Resources for your Mac
- Resources for your Apple devices
If a disk can’t be repaired
If you see a message saying macOS can’t repair a disk, you may need to reformat it or replace it.
Back up as much of your data as possible, reformat by partitioning the disk, then restore your backed up data. For information about backing up data, see Alternatives for backing up your Mac.
If you continue to have problems with your disk, it may be physically damaged, and you may need to replace it. For service information, see Find out how to service or repair your Mac.
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