How to repair a Mac disk with Disk Utility.
- Open Disk Utility. Start up from macOS Recovery, then select Disk Utility from the Utilities window. Click Continue. If you're not repairing the disk ...
- Locate your disk in Disk Utility.
- Repair volumes, then containers, then disks.
Full Answer
How do you repair a hard disk on a Mac?
How to repair a Mac disk with Disk Utility
- Open Disk Utility. In general, you can just open Disk Utility from the Utilities folder of your Applications folder. ...
- Select your disk in Disk Utility. Choose View > Show All Devices (if available) from the menu bar or toolbar in Disk Utility. ...
- Repair volumes, then containers, then disks. ...
How to repair your Mac using Disk Utility?
- Restart Mac by clicking on the Apple menu then Restart.
- Upon restarting press Command + R and holding until the Apple logo appears.
- Click on Disk Utility and click Continue.
- Find the disk from the sidebar that needs to be repaired.
- Look for First Aid and click. ...
- Simply backup the entire Mac and bring it to the nearest Apple store.
How to repair a Mac disk with fsck?
To address the file system issues, do the following:
- Start your Mac in Single-User Mode by holding down the Command + S keys at startup.
- At the command-line prompt type:
- Hit Return and wait for fsck to finish the five ‘phases’ that it needs to go through.
How to check and clean up disk space on Mac?
Free up storage space on your Mac
- Optimize storage space. To make more storage space available, use the storage-management features of macOS Sierra or later. ...
- Free up storage space in other ways. Manually delete unneeded files by moving them to the Trash, then emptying the Trash. ...
- Check your progress. ...
How do you use the repair disk on a Mac?
For each disk that you're repairing, start by selecting the last volume on that disk, then click the First Aid button or tab. In this example, the last volume on the disk is Macintosh HD - Data. Click Run to begin checking the selected volume for errors. If there is no Run button, click the Repair Disk button instead.
How do I run a recovery repair on a Mac?
How to Repair a Mac Boot Disk with Disk Utility in Mac OS XReboot 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.More items...•
How do you fix macOS cant repair the disk?
If you get a message saying macOS can't repair a disk, you may need to reformat it or replace it.Back up as much of your data as possible, erase and reformat the disk, then restore your backed up data. ... If you continue to have problems with your disk, it may be physically damaged, and you may need to replace it.
Can you open a hard drive and fix it?
An external hard drive is just a regular internal hard drive in an external case. You can open the case and take out the drive, and from here you can connect it to a computer in a number of different ways. Or you can find a replacement case and install the hard drive so you again have a functioning external hard drive.
How do I start my Mac in Disk Utility mode?
2. Boot Mac to Disk UtilityMake sure your Mac has completely turned off. ... Restart the Mac and instantly hold Command + R keys to boot Mac into macOS Recovery mode. ... You'll see a macOS Utilities or Mac OS X Utilities window, which depends on your Mac operating system.Select Disk Utility to repair or erase a disk.
How do I fix a corrupted external hard drive without formatting Mac?
How to Recover Files From an External Hard Drive Without FormattingDownload and install Disk Drill. ... Ensure your drive is plugged into the computer. ... When the scan has finished, click Review found items.Scan the recoverable data for any items you want to recover. ... Specify where you want to recover the files.More items...•
How do I fix a corrupted external hard drive without formatting?
How to Restore Data from External Hard Drive Without Formatting?Scan Your Computer for Viruses.Use CHKDSK to Fix File System Errors.Replace Corrupted Files with SFC.Recover Your Files with Data Recovery Software.
Does reinstalling macOS delete data?
macOS Reinstallation Deletes Everything, What Can I Do Reinstalling macOS of macOS Recovery can help you replace the current problematic OS with a clean version quickly and easily. Technically speaking, simply reinstalling macOS won't erase your disk either delete files.
How to fix Mac error?
One simple way to fix such errors is to boot your Mac into Safe Mode. Safe Mode, sometimes called “Safe Boot,” contains an automatic startup check and repair that can fix these problems.
How to check disk for errors on Mac?
It depends which you select in the sidebar. Click “Run” and your Mac will check the disk you selected for errors. If it finds any errors, it will attempt to automatically fix them for you. You can click the “Show Details” drop-down message to view detailed information about any errors it encounters.
How to check if a disk is Macintosh HD?
In the Disk Utility application, select the disk or partition you want to check — the system partition is named “Macintosh HD” by default — and click the “First Aid” button. You can either run the First Aid function on an entire disk, or an individual partition on that disk. It depends which you select in the sidebar.
How to check disk partition?
To launch it, you can press Command+Space to open Spotlight search, type “Disk Utili ty”, and press Enter. Or, you can navigate to your Applications folder, double-click the “Utilities” folder, and double-click the “Disk Utility” shortcut. In the Disk Utility application, select the disk or partition you want to check — the system partition is named ...
Does Mac OS X repair disk permissions?
Modern versions of Mac OS X no longer need you to repair disk permissions. However, that’s not the only issue that can occur with a disk or file system. Mac OS X contains a variety of tools for repairing disk, partition, and file system errors. These options work like chkdsk on Windows, checking for disk and file system errors and repairing them.
Can you check disk health on Mac?
You can perform a disk health check from the Disk Utility application included with Mac OS X. Apple updated this utility’s interface on Mac OS X 10.11 El Capitan, so it’ll look a bit different from the screenshots below if you’re still using and older version of Mac OS X.
How to repair a disk on Mac?
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. Open Disk Utility for me. In the Disk Utility app on your Mac, choose View > Show ...
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.
Can disk utility fix a disk?
Disk Utility can’t detect or repair all problems that a disk may have. To check and repair a disk, you need to run First Aid on each volume and container on ...
What is Disk Utility First Aid?
Disk Utility comes pre-installed on every Mac, and offers a way to manage and repair the various disks you might use: startup disks, storage volumes, and even external drives. You can use Disk Utility to partition, restore, or format different disks.
How to repair disk on your Mac with Disk Utility
At its essence, Mac disk repair is as simple as opening the Disk Utility application, selecting a disk, and running First Aid. But before you jump in, there are a few other steps you need to take to protect yourself from data loss.
If all else feels, seek a physical repair
It’s entirely possible that you’re experiencing problems with your Mac because of a physical problem with its disk. This might be the result of liquid damage or a hard knock, but disks can also stop working as they age over time.
What to do if disk doesn't show up on Mac?
What to do if the disk you are trying to repair doesn’t show up in the Disk Utility on Mac. If you cannot see the disk you want to repair of your Mac in the left panel of the Disk Utility interface, then turn off the computer, disconnect all peripheral devices and try again.
What does it mean when a Mac is labeled as a chip?
If you see an entry labeled “Chip” with the chip model written next to it, this means your Mac is with an Apple Silicon processing unit. If, instead of “Chip”, there’s a “Processor” entry followed by the name of the processor, then this means that the computer is equipped with an Intel CPU.
How to Use Mac Disk Repair Utility?
If Mac OS X startup has failed, running risk repair is the best solution for bringing your computer back to life. However, on macOS Sierra/High Sierra, you can run a disk check for errors:
How to Repair Mac Disk Permissions?
When running a disk repair procedure on your MacBook Air/Pro or iMac, repairing disk permissions is also a good idea. The above applies to the Mac OS X versions before El Capitan. As for macOS Sierra and High Sierra, these OS versions no longer include disk permissions repair.
What to Do If Disk Utility Fails?
In the event the Disk Utility failed to repair the directory corruption it has discovered, follow the below troubleshooting instructions:
How to repair a corrupted hard drive on a Mac?
How to Fix a Corrupted Hard Drive on a Mac. 1. Repair the Corrupted Hard Drive Using Disk Utility. 2. Initiate the FSCK Command. 3. Try Free Software to Recover Mac Hard Drive Data. 4. Recover from a Time Machine backup drive.
How to recover information from a corrupted hard drive?
1. Repair the Corrupted Hard Drive Using Disk Utility. After discovering the corrupted hard drive, you can repair it through the Terminal. Once you open it, type in this command:
How to turn off Mac for the day?
When it is time to turn your Mac off for the day, go to the Apple menu at the top left to initiate the command. If you need the computer to sleep, you’ll find that option available in the same location.
Can you revert to a previous version of Time Machine?
If you use Time Machine on Mac, you can revert to a previous version to eliminate the corrupted files. This method works if you have a saved disk image that doesn’t contain the problem. Here’s what you need to do: Connect your Time Machine backup disk if it’s not already connected to your Mac.
Can malware cause a corrupted hard drive?
Malware can also create corruption problems on a Mac hard drive. These factors can adversely impact any external drives you have connected to the Mac, which means each one may need to be searched, scanned, and repaired before full functionality gets restored.
Can you use Time Machine to restore a Mac?
Whether you use Time Machine or a third-party tool to create an image of your drive, it is critical to keep at least one copy of your files and folders. If something happens, you can use this compressed storage medium to restore your Mac.
Can you use Disk Drill on Mac?
Software tools like Disk Drill for Mac are useful when First Aid and Time Machine won’t work or are unavailable. You can also use third-party free tools to get the results you want. A corrupted drive won’t fix itself. If you take these steps today, you can get your Mac running better faster than you might realize.
How to check disk partition on Mac?
To open it, bring up the Spotlight search by pressing Command + Space. Type in Disk Utility and hit Enter. Now, use the sidebar to select the partition or disk that you wish to check and click on the First Aid. Confirm this by clicking Run, and Mac will start searching for any errors.
What to do if your Mac is sluggish?
If your Mac is still sluggish, you can use Speed and Defragment to improve its performance. Drive Genius is geared more towards professionals, so some users may be repelled by the sheer amount of features. However, if you get the hang of it, it can easily become indispensable when it comes to disk repair.
What is DiskWarrior 5?
DiskWarrior 5 is a great option for fixing slow HDDs and SSDs, as it quickly locates and repairs bad sectors caused by software issues. It’s also useful against the Invalid node structure error that happens if your disks are heavily corrupted.
How many files can you retrieve with disk drill?
If worst comes to worst, you can use it to retrieve over 200 file formats with numerous scanning methods.
What is maintenance in a computer?
Maintenance is all about repairing file permissions and rebuilding indexes and databases. Automation helps you program routine tasks that will be done in the background without any interference. Utilities is home to obscure but powerful tools that can improve the health of your drive, such as Storage Management.
Can you run disk drill on a Mac?
Lastly, Disk Drill runs perfectly on Macs that use modern M1 and T2 silicone chips. This is a feature that no other recovery tool yet provides. In case you can’t boot your Mac, Disk Drill can also be run in recovery mode. To do this, restart your computer and hold Command + R until the Apple logo pops up.
What to do if Disk Utility can't repair a disk?
However, it can’t fix everything. So the first thing you should do if Disk Utility can’t repair a disk is to back it up. That way, if it fails, you won’t lose your data. CleanMyMac X has a number of tools that can keep your disk running smoothly and reduce the chance of problems occurring.
How to boot Mac in recovery mode?
To boot in Recovery Mode, restart your Mac and hold down Command-R. Go to Applications > Utilities and double-click Disk Utility to launch it. In the top left corner of the window, click View and choose View all devices. In the sidebar, select a disk or volume. Click First Aid. Press Run then Continue .
