Disk Drill: The best data recovery software for Mac OS X. Recover deleted or lost data from any storage device, iOS and Android. The best Mac disk repair, diagnostic tools & more! I have put together a list of what are, in my opinion, the ten best Mac disk repair software and other excellent Mac tools for troubleshooting, diagnosing, and repairing a Mac. Many of them are free or offer a free trial.
Disk Utility User Guide
- Simply select the disk, grab the resize handle and drag. You can also use the app to create, destroy, or format partitions on your Mac, whether the disk is the internal Macintosh HD or an external removable drive. The program seems like a paid software, but the developer actually shares a license on its official page (scroll down to the bottom).
- MacDrive 10 features an all-new Disk Management Window that displays any Mac disk mounted to your PC and gives you quick access to all of MacDrive’s features. Open and edit your Mac files from the new window or access them direct from Windows Explorer or your favorite software.
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. Disk Utility can’t detect or repair all problems that a disk may have.
If you run First Aid on a disk, Disk Utility checks the partition maps on the disk and performs some additional checks, and then checks each volume. If you run First Aid on a volume, Disk Utility verifies all the contents of that volume only.
- In the Disk Utility app on your Mac, choose View > Show All Devices.Note: If you’re checking your startup disk or startup volume, restart your computer in macOS Recovery, select Disk Utility in the macOS Utilities window, then click Continue. If you check your startup volume (Macintosh HD), make sure you also check your data volume (Macintosh HD - Data).
- In the sidebar, select a disk or volume, then click the First Aid button .If Disk Utility tells you the disk is about to fail, back up your data and replace the disk—you can’t repair it. Otherwise, continue to the next step.
- Click Run, then click Continue.If Disk Utility reports that the disk appears to be OK or has been repaired, you’re done. You can click Show Details to see more information about the repairs. Otherwise, you may need to do one of the following.
- If Disk Utility reports “overlapped extent allocation” errors, two or more files occupy the same space on your disk, and at least one of them is likely to be corrupted. You need to check each file in the list of affected files. Most of the files in the list have aliases in a DamagedFiles folder at the top level of your disk.
- If you can replace a file or re-create it, delete it.
- If it contains information you need, open it and examine its data to make sure it hasn’t been corrupted.
- 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.
If your Mac has a Fusion Drive and you see a flashing question mark or alert, see the troubleshooting section of the Apple Support article About Fusion Drive, a storage option for some Mac computers.
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.
See alsoErase and reformat a storage device in Disk Utility on MacAdd, delete, or erase APFS volumes in Disk Utility on MacPartition a physical disk in Disk Utility on Mac
by Shirly Chen, updated on 2017-02-07 to Mac Data Wipe
Formatting is a prior method to delete all data from local/external hard drive or fix disk error. For Windows users, it is very easy to format a hard drive using built-in quick format feature. However, when a Mac user right-clicks a hard drive on Mac, he can’t see the quick format option. Especially for the new Mac users, it seems difficult to find a solution to format local hard drive or external hard drive under Mac OS. In this article, we will introduce some Mac disk formatting software tools to help Mac users easily and securely format hard drive, USB flash drive, memory card or other device under Mac OS.
Three Useful Disk Formatting Software for Mac
1. Super Eraser for Mac - best Mac Disk Format Software
Super Eraser for Mac is a very powerful tool to permanently erase data from Mac hard drive or storage media. It can easily format hard drives, storage devices and permanently erase all the data on the targeted media. It also can format SSD hard drive and erase data under Mac OS. Free download the best Mac disk formatting software - Super Eraser for Mac.
This mode ‘Wipe Hard Drive’ will help you format a selected hard drive/device and erase all data from it. You just need to select the hard drive you want to format, and then click on 'Wipe Now' button. Then Super Eraser for Mac will help you format and erase the selected hard drive/device. Please note that all the existing data and history data on the selected hard drive will be permanently removed, can’t be recovered by any data recovery software or manual data recovery service.
This Mac hard drive formatting tool also can erase free disk space to permanently erase deleted/lost data on the hard drive. This option is used for erasing deleted files and formatted files on your Mac, without affecting the existing data.
If you are going to sell, donate your Mac/device or just want to completely remove unwanted files and fix disk errors, Super Eraser for Mac is the best Mac disk formatting tool for you. It can help you regain a brand new disk.
Note: formatted data will be permanently lost, can’t be recovered by any software or method.
2. Mac Disk Utility
Note: formatted data can be recovered by data recovery software.
Disk Utility is a built-in app in macOS. When you open this app, it will show all the hard drives and devices on your Mac. You can use the erase function to format a hard drive or device. However, when the hard drive has been erased by Disk Utility, most of the formatted data can be recovered by data recovery software.
3. Start Menu for Mac
![For For](/uploads/1/1/8/9/118912417/412338947.jpg)
Note: formatted data can be recovered by data recovery software.
Start Menu for Mac is an all-in-one Mac manager. It offers a feature – format. You can run it on your Mac, and use it to format external hard drive or device on your Mac. It is the fastest way to format an external hard drive/device under Mac OS.
Seagate Disk Tools For Mac
Disk Diagnostics For Mac
4. MacClean360
MacClean360 is one of the best disk cleaning and management software for Mac OS. It offers more than 9 tools to help you optimize and manage your Mac computer. The Disk Manager tool is able to list all hard drives and external devices on your Mac. Then you can choose one of the hard drive and format it by click on 'Format' button.
The 4 disk formatting software for Mac above can help you easily format hard drive, USB flash drive, memory card, and other storage media under Mac OS. However, when you format your hard drive with Super Eraser for Mac, all your data will be permanently lost. So please back up your important files before you run Super Eraser for Mac to format your hard drive or other device under Mac OS.
Disk Drill For Mac Review
FREE download DoYourData Super Eraser for Mac to help you format hard drive, external hard drive or storage media on Mac.
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