#Run disk utility mac how to

For more details, check our complete guide to using macOS Recovery.

If you had Time Machine set up, you could restore your data after reinstallation. Then, exit Disk Utility and use the Reinstall macOS option to reinstall macOS. If that fails, reload Disk Utility in macOS Recovery and erase the drive (pick the Macintosh HD volume group and select Erase). ItвЂ™s a command-line tool capable of fixing additional drive-related errors. If Disk Utility fails to repair your MacвЂ™s internal storage drive (or if repairing the drive continues to prevent you from booting into macOS), try running an FSCK scan in Single User Mode (press Command + S at startup and execute the /sbin/fsck -fy command). If Disk Utility finds and fixes disk errors, open the Apple menu and select Restart to reboot your Mac. Run First Aid on the entire storage drive. Repeatedly run First Aid on the other volumes and containers within the drive.Д§. On the Startup Options screen, choose Options and select Continue.Д¦. Press and hold the Power button until you see the Loading startup options message flashes on the screen.ДЈ. If your Mac appears stuck at startup, press and hold the Power button to force shut it down.Дў. Enter macOS Recovery вЂ“ Apple Silicon MacsДЎ. However, the procedure to get into macOS Recovery is different for Apple Silicon and Intel Macs. MacOS Recovery is an advanced recovery environment independent of the MacвЂ™s operating system. You must also use it if repairing the drive from within macOS fails. When that happens, you must invoke Disk Utility and check for disk errors via macOS Recovery. If your Mac fails to boot into macOS, that usually indicates a severe problem with the internal storage.

#Run disk utility mac how to

How To Run Check for Disk Errors in macOS Recovery If Disk Utility on your Mac fails to repair the internal storage drive, itвЂ™s best to repeat the procedure in macOS Recovery. Finally, run First Aid on the entire storage drive.

Then, focus your attempt on each container. When it or any other native app misbehaves, you should concentrate your repair efforts on the OS. It does a Repair disk during the boot process, and is faster than booting from an external drive to run DU-Repair Disk on the internal drive. Repeat steps 3вЂ“ 7 by selecting and running First Aid on the remaining volumes within the drive. Safe mode startup is a very useful fix-almost-all-OS-problems tool.