The Storage pane of About This Mac is the best way to determine the amount of storage space available on your Mac. Disk Utility and other apps may show storage categories, such as Not Mounted, VM, Recovery, Other Volumes, Free or Purgeable. Explore the world of Mac. Check out MacBook Pro, iMac Pro, MacBook Air, iMac, and more. Visit the Apple site to learn, buy, and get support.
These instructions apply only to Mac computers with an Intel processor.
Erasing your Mac permanently deletes all of its files, so make sure that you make a backup of any files that you want to keep. Simple macro maker. If you're attempting to restore your Mac to factory settings, first learn what to do before you sell, give away, or trade in your Mac.
Use one of the ways we shared to access the hidden Library folder on Mac. Also, you can use a special free utility Funter to find and operate hidden files and folders on Mac. But, once again, if you are a new Mac user and don`t know much about the architecture and functions of macOS, it is highly recommended that you be careful and not remove important files from the Library. If the internal hard drive of Mac, the disk0s2, or the Macintosh HD is not mounted on Mac, you'll see one of these: All the data on the Mac hard drive becomes inaccessible. Most of the operations in Disk Utility are greyed out or disabled except the Erase button. The Macintosh HD will be grayed out, and you cannot repair it but only back up files.
Start up from macOS Recovery
Turn on your Mac, then immediately press and hold these two keys until you see an Apple logo or other image: Command (⌘) and R. You may then be asked to select a user you know the password for. Select the user, then click Next and enter their administrator password.
Use Disk Utility to erase your disk
- From the utilities window in macOS Recovery, select Disk Utility and click Continue.
- Select Macintosh HD in the sidebar of Disk Utility. Don't see Macintosh HD?
- Click the Erase button in the toolbar, then enter the requested details:
- Name: Continue to use Macintosh HD as the name, or enter a different name.
- Format: Continue to use APFS or Mac OS Extended (Journaled), as recommended by Disk Utility.
- Click Erase Volume Group. If you don't see this button, click Erase instead.
- If Find My is turned on for this Mac, you may be asked to enter your Apple ID to authorize the erase. Forgot your Apple ID?
- After the erase is done, select any other internal volumes that may be listed in the sidebar, then click the delete volume (–) button in the toolbar to delete each volume.
You don't need to delete the Macintosh HD volume you just erased, or any external volumes or disk images. - Quit Disk Utility to return to the utilities window.
- If you want to start up again from the disk you erased, you should now reinstall macOS on that disk.
If you don't see Macintosh HD in Disk Utility
Your built-in startup disk should be the first item listed in the Disk Utility sidebar. It's named Macintosh HD, unless you changed its name. If you don't see it there, choose Apple menu > Shut Down, then unplug all nonessential devices from your Mac and try again.
How To Find Macintosh Hd Folder On Mac
If your disk still doesn't appear in Disk Utility, or Disk Utility reports that the erase process failed, your Mac might need service. If you need help, please contact Apple Support.
Macintosh Hd Password
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For more information about using Disk Utility, see the Disk Utility User Guide.
Use Software Update
- Choose System Preferences from the Apple menu , then click Software Update to check for updates.
- If any updates are available, click the Update Now button to install them. Or click 'More info' to see details about each update and select specific updates to install. You might be asked to enter your administrator password.
- When Software Update says that your Mac is up to date, the installed version of macOS and all of its apps are also up to date. That includes Safari, Music, Photos, Books, Messages, Mail, Calendar, and FaceTime.
- To automatically install future updates, including for apps that you got from the App Store, select 'Automatically keep my Mac up to date.' Your Mac will notify you when updates require it to restart, so you can always choose to install those later.
Update the software on your iPhone, iPad, or iPod touch
What do you know about excel. Learn how to update your iPhone, iPad, or iPod touch to the latest version of iOS or iPadOS.
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- Learn how to get updates for earlier versions of macOS that don't include Software Update preferences.
- You can also use the App Store to update apps or redownload apps that came from the App Store.
- Learn which macOS your Mac is using and how to upgrade to the latest macOS.
- When your Mac is connected to a Personal Hotspot, large updates don't download automatically.