- In the Apple menu, choose Restart.
- As your Mac restarts, hold down the Command (⌘) – R combination immediately upon hearing the startup chime and hold...
- Select Disk Utility and click Continue.
- In the sidebar, select the volume you wish to repair.
- Click the First Aid button.
- Click Repair Disk.
- Two things will happen: either the app will report that the...
Full Answer
How do I repair the disk my Mac starts up from?
However, if your Mac doesn't start up all the way, or you want to repair the disk your Mac starts up from, open Disk Utility from macOS Recovery: Apple silicon : Turn on your Mac and continue to press and hold the power button until you see the startup options window. Click the gear icon labeled Options, then click Continue.
How do I check my startup disk or startup volume?
Note: If you’re checking your startup disk or startup volume, restart your computer in macOS Recovery, select Disk Utility in the macOS Recovery window, then click Continue. If you check your startup volume (Macintosh HD), make sure you also check your data volume (Macintosh HD - Data).
Why can’t I repair my Disk in recovery mode on Mac?
While you’re in Recovery mode, you may also want to verify disk permissions and repair them, repair user permissions, and verify and repair other disks as well. Again, if you see that the “Repair Disk” function is greyed out and not clickable in Disk Utility, be sure to boot back into Recovery Mode again on the Mac to make it accessible again.
How do I restore my MacBook Pro to factory settings?
Reboot the Mac and hold down Command+R to boot into Recovery, or hold down OPTION Select “Recovery HD” at the boot menu At the Mac OS X Utilities screen, select “Disk Utility” Select the boot volume or partition from the left menu and click on the “Repair” tab
How do you fix a corrupted volume on a Mac?
Step 2: Reformat the corrupted Macintosh HD.Restart the Mac into macOS Recovery mode.Select Disk Utility under macOS Utilities menu.Select Macintosh HD drive from the sidebar.Click Erase on the top.Follow the instructions to finish the reformatting process.Restart normally.
How do I repair my Mac startup disk?
Restart your Mac, and press Command + R, while it's restarting. Select Disk Utility from the macOS Utilities menu. Once Disk Utility has loaded, choose the disk you wish to repair - the default name for your system partition is generally "Macintosh HD", and choose 'Repair Disk'.
How do I reinstall Mac OS when startup volume is deleted?
How to reinstall macOS when the startup volume was erased?Turn on your Mac and immediately press and hold Command (⌘)-R.Choose Reinstall macOS from the Utilities window.Click Continue and follow the onscreen instructions.More items...•
How do I reset my startup disk and Sound Preferences on a Mac?
Change your startup disk for every startupOn your Mac, choose Apple menu > System Preferences, then click Startup Disk . Open Startup Disk preferences for me. If the lock at the bottom left is locked , click it to unlock the preference pane.Click the icon of the disk you want to use, then click Restart.
What does it mean when my Mac says startup disk full?
Well, it's the hard drive that contains your operating system, which makes it the most important disk of all. So when the “Your startup disk is almost full” message pops up, it basically means you are running out of space on your primary disk drive and that is very bad news.
How do I check my Mac startup disk?
On your Mac, choose Apple menu > System Preferences. Click Startup Disk . Your selected startup disk is shown at the top of the preferences pane.
Why is my Mac not showing a startup disk?
If you can't see your startup drive, open Disk Utility from the macOS Utilities window. Click on your startup drive and click the First Aid tab. Click Run. If the repair completes successfully, you can select the disk in Startup Disk in the Apple menu and restart.
How do I reinstall my audio driver Mac?
Start your Mac and boot into Windows.Open Internet Explorer and go toApple Support.Click Downloads.Scroll until you find the latest audio drivers for the Mac system you're running.Click Download.Follow the on screen instructions to download and install the latest audio drivers for your Mac.Reboot your Mac.
How do I fix a corrupted hard drive?
You can fix the 'Disk Structure Corrupted and Unreadable' error by:Unplugging and re-plugging the external HDD or USB drive.Uninstalling and reinstalling disk drive.Running hardware and device troubleshooter.Running disk scan for hard drive errors.Running CHKDSK command.More items...•
Why can't I find startup disk on my Mac?
If you can't see your startup drive, open Disk Utility from the macOS Utilities window. Click on your startup drive and click the First Aid tab. Click Run. If the repair completes successfully, you can select the disk in Startup Disk in the Apple menu and restart.
What happens if my Mac is not repaired?
If you continue to have problems with your disk or it can’t be repaired, it may be physically damaged and need to be replaced. For information about servicing your Mac, see Find out how to service or repair your Mac.
What to do if Disk Utility can't repair your disk?
If Disk Utility can’t repair your disk, or you receive a report that the First Aid process failed, try to repair the disk or partition again. If that doesn’t work, back up as much of your data as possible, reformat the disk, reinstall macOS, then restore your backed-up data.
How to check if a disk is failing?
To check and repair a disk, you need to run First Aid on each volume and container on the storage device in turn, then run it on the storage device itself. If Disk Utility tells you the disk is about to fail, back up your data and replace the disk—you can’t repair it.
How to show all devices on Mac?
In the Disk Utility app on your Mac, choose View > Show All Devices.
What is disk utility?
Disk Utility can check for and fix errors related to the formatting and directory structure of a Mac storage device.
How to find the storage version of a Mac?
You now should be asking how to manage storage on Mac. Well, you can do so by clicking the Apple logo and then select the option “ About This Mac ” . You will find the version number on macOS, like this:
How to find out what Mac you have?
Click on the Apple Logo > "About this Mac" option.
What is the Meaning of "Your Disk is Almost Full"?
In Mac, the Startup disk is a hard drive. It contains your operating system and all the apps you have installed on Mac. Your machine needs all this information to start up and it is the main disk drive. You can add an external hard drive to keep more app and information, but mostly all the users keep just the startup disk alone.
Why are some apps sitting on my Mac?
Some applications sitting on our Mac without being used. Maybe, you just needed an app for one occasion and forgot to delete it afterward. If that happens often, then you have space used by unnecessary apps. Take a look at all your installed apps and uninstall the ones you will not need. Make sure to delete the caches of these apps afterward.
How to save space on a TV?
You can save space by using Optimize Storage. Just click the "Optimize" button on your Storage settings. It will help you delete all movies, TV shows, and videos you have already purchased and seen.
Can you ignore disk warning?
You can choose to ignore this warning. However, it will still notice you again and again. Having your starting disk so full can lead to some inconvenient situations like:
What happens if you can't repair a volume?
If you can not repair the volume with Disk Utility from the Recovery partition, then you will need to reformat the drive- this will erase ALL data.
Is disk utility good?
Disk Utility is reasonable for average problems but is is very limited bordering on useless for things such as corrupted Volume directories and the like. There are things that Disk Utility can't fix that DiskWarrior or TechTools Pro has no problems fixing so Disk Utility failing to fix the problem may not mean your drive is dying--just that whatever happened is beyond its ability to fix.
