How to check your MacBook's hard drive health

Apple’s Disk Utility lets you run First Aid on each volume, the container, and the physical drive, checking the file system for errors and displaying the drive’s S.M.A.R.T. status, which indicates whether serious hardware issues have been reported. For more detailed hardware diagnostics, third-party tools like DriveDx provide deeper S.M.A.R.T. analysis, SSD testing, and trend monitoring, especially useful for external drives.