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 fix a corrupted disk on a Mac?
How to Fix a Corrupted Hard Drive on a MacRepair the Corrupted Hard Drive Using Disk Utility. ... Initiate the FSCK Command. ... Try Free Software to Recover Mac Hard Drive Data. ... Recover from a Time Machine backup drive. ... Hire a hard drive recovery service for Mac. ... 🔌 Shut Down Your Mac Safely. ... ⚡ Prevent Spills and Exposure.More items...•
What does it mean to repair disk on Mac?
Disk Utility can check for and fix errors related to the formatting and directory structure of a Mac storage device. Disk Utility can fix certain disk problems—for example, multiple apps quit unexpectedly, a file is corrupted, an external device doesn't work properly, or your computer won't start up.
How do I repair my disk?
Non-System VolumePress "Windows-E" from the desktop to open File Manager. ... Select "Properties" from the context menu, click the "Tools" tab and then click the "Check" button under Error Checking.Click "Repair This Drive" when the scan completes to fix the device errors.
Where is repair disk on Mac?
Repairing a diskRestart 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'.
Does repair disk on Mac erase data?
No. Disk Utility First Aid only checks and repairs the errors related to a Mac disk's file system format and directory structure. It cannot erase data on the drive.
Does repair disk delete files Mac?
It has no effect except on the drive it is repairing. Repairing only affects the directory and filesystem. If a directory is corrupted and repaired then it's possible a file or two may be lost on the drive in question. But Disk Utility does not delete files except when you erase a drive.
How do I fix a corrupted and unreadable hard drive?
Part 1: Top 7 Ways to Fix "The File or Directory is Corrupted and Unreadable" in Windows 11/10/8/7Change the Location of Inaccessible Files. ... Disable or Uninstall Anti-Virus Software. ... Scan Drive from Disk Properties. ... Perform the Startup Repair of the Disk. ... Perform a Disk Check through CMD on Windows 11/10/8/7.More items...•
How do I fix a failed hard drive?
How to Fix Hard Drive FailureClean Out the Computer Vents. Over time, dust and debris will visibly clog up the vents on your computer. ... Check the Power and Data Cables. Your hard drive has power and data cables that connect to it from the computer power supply and motherboard. ... Check Your Bios. ... Listen for Sounds.
How do I fix an unreadable hard drive?
5+ Fixes for "The Disk Structure Is Corrupted and Unreadable" Error#1. Unplug and Re-plug the Corrupted/Unreadable Device.#2. Check and Repair Disk Error via CHKDSK.#3. Reinstall Disk Drivers.#4. Format Drive.#5. Recover Data.
What does repairing disk mean?
Why might a “repairing disk errors” message appear? You may get the “repairing disk errors” message if your boot disk is unable to boot the computer due to some possible errors. Typically, this error occurs when you forcibly shut down the computer or if the main hard drive is faulty; e.g., it has bad sectors.
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 does disk repair work?
The Repair Disk function Repair Disk verifies and, if problems are found, corrects issues with the directory on a disk or volume. The directory is analogous to a combined address book and road map to where data is stored on a disk or volume.
Is there a way to fix a corrupted hard drive on a Mac?
Several disk utilities and third-party software tools can help you fix a corrupted hard drive on a Mac. Depending on your unique situation, some or...
How did my hard drive get corrupted on a Mac?
Most Mac corruption issues occur because of unexpected power failures, physical damage, RAM problems, and hardware failure. Malware can also creat...
How do I fix a corrupted hard drive that won’t boot?
You must initiate a repair process through Mac to restore a corrupted hard drive. Disk Utility apps and free third-party solutions can accomplish t...
How do I fix a corrupted hard drive on a Mac?
You can fix a corrupted hard drive by recovering missing or deleted files using data recovery software and the following procedure. Download and in...
How do I know if my Mac hard drive is corrupted?
The signs that your Mac’s hard drive is corrupted include: Applications respond inconsistently or suddenly quit; Files won’t open; You can’t move f...
How do I restore my Mac hard drive?
To restore a Mac hard drive after formatting it or deleting all its files, use the following procedure. Download and install Disk Drill for Mac on...
How much does it cost to fix a Mac hard drive?
The cost of fixing a Mac hard drive varies depending on the type of damage the device has experienced. Logical data loss due to accidental file del...
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 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 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.
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 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 ...
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 ...
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 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.
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.
Who is Jeff Cochin?
Jeff Cochin is a data management and recovery expert. He also serves as a technical writer, testing and reviewing tech solutions in various fields.Jeff Cochin is a professional data management, warehousing and recove... Read full bio. Jeff Cochin is a data management and recovery expert.
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 does it mean when a disk is not fully repaired?
It means the disk has not been fully repaired. You need to run Disk Utility again and try to repair the damaged disk. If it cannot be done, make a backup of your data and then reformat the disk, and reinstall macOS. Or if the errors cannot be repaired because of physical damage, you will need to replace the old damaged disk.
Why won't my Mac boot?
Undoubtedly, there are lots of reasons that can lead to failed Mac boot. And hard disk error is one of them. So it is urgent to check out the disk errors and repair them in time while you encounter this problem. Otherwise, not only you cannot boot Mac, but also you will lose many important files or folder on Mac.
How to get into single user mode on Mac?
Turn on your Mac computer. When you hear the startup tone, press and hold on Command + S on the keyboard. Until you see a text-code black screen, release the keys. Now you have successfully access Mac in single user mode and just wait for it starting fully about few seconds.
How to fix disk error on Mac?
Step 3: Run First Aid to check and repair disk errors. 1. Click the First Aid on the top menu and tap on Run button to launch First Aid on Mac. 2. Continue while you get a prompting message from First Aid. 3.
What are the results of First Aid?
At last, you will get three results generally after First Aid process. Click the Show details to view. Result 1: Nothing is wrong or no errors needed to be repaired. Then you will receive message like "The volume (the name of disk) appears to be OK". Result 2: You will get "overlapped extent allocation" errors.
What does it mean when two files are occupying the same space?
If not, check the file content and decide if you can delete it. Result 3: Get "The underlying task reported failure" errors. It means the disk has not been fully repaired.
What should the last line end in?
Generally, the last line should end in root# if Mac has booted successfully in single user mode. Now right after the root# prompt, enter the following command and press Return key.
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 .
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.
