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macOS User Guide
- Welcome
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- 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
- Resources for your Mac
- Resources for your Apple devices
- Copyright
Solve problems with a disk using Disk Utility on Mac
The following issues may be related to your hard disk:
Multiple apps quit unexpectedly
Files become corrupt
An external drive does not operate properly
Your computer doesn’t start up
If you have problems with your hard disk, you may be able to repair it using Disk Utility.
See the Repair a storage device topic in the Disk Utility User Guide.
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