Thanks to its “Live Verification” feature, Disk Utility can be used to check the Mac's startup disk without starting the computer from another volume. ![]() Using Disk Utility to Repair a Startup Disk To do that macOS has two powerful utilities: the more user-friendly Disk Utility (which has a nice GUI) and fsck (short for File System Consistency Check), a command-line utility which is only recommended for advanced users comfortable with controlling a Mac using text commands. Especially now that Apple has migrated its user base over to its new Apple File System (APFS) after the release of High Sierra, you might want to be assured that everything is fine with your data. ![]() On top of that, macOS has powerful built-in utilities to address issues with the file system. sends signals that suggest the hard drive is about to fail or if partitioning a drive gives an error message. Whether this means cleaning the machine of junk data with the help of a Mac optimization app such as CleanMyMac or by performing disk maintenance depends on the situation you encounter.Ī disk check isn't something you'd perform too often, though, unless the system's built-in monitoring utility S.M.A.R.T. ![]() For the Mac this means having to check the machine from time to time and take steps to ensure it runs optimally. Devices that you are connected to usually need your attention.
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