Using DiskWarrior 5.2 while started (booted) from High Sierra, Mojave, Catalina or Big Sur.
What you need to know (Click here for the summary)
- DiskWarrior monitors your drive's health. Using SMART technology, DiskWarrior can automatically test and alert you to impending drive malfunctions. DiskWarrior is so advanced it can even recover your data from a failing drive. Just plug a new drive into your Mac and let DiskWarrior copy your good files from the failing hard drive to the new drive.
- DiskWarrior Mac data recovery alternative free can recover lost data from any kind of hard drive or device. Just select the hard drive where your data is lost and click on “Scan” button, then DiskWarrior Mac data recovery alternative free will scan the.
However, DiskWarrior only supports Mac version. If you suffer from data loss on Mac, you can consider purchasing the license from the DiskWarrior official website. However, If you want to recover data on both Windows and Mac devices, the Mac DiskWarrior is bot available.
1) Apple File System (APFS) disks (typically a macOS 10.14 Mojave, 10.15 Catalina or 11.0 Big Sur Startup Disk) are recognized but ARE NOT able to be rebuilt by DiskWarrior 5.2. Click here to learn how to identify an APFS disk.
2) M1 (ARM) equipped Macs are not currently supported. See our Big Sur Compatibility Page.
3) Click here to join the Mailing List to be notified of progress regarding Apple File System (APFS) support, M1 (ARM) support, and updates to DiskWarrior.
4) Mac OS Extended (HFS Plus) disks can be rebuilt as before, when rebuilding from an Intel Mac.
5) The Startup Disk of Macs are automatically converted from Mac OS Extended (HFS Plus) to Apple File System (APFS) when installing or upgrading to macOS 10.14 Mojave, macOS 10.15 Catalina or macOS 11.0 Big Sur. Only internal SSD drives are converted to APFS by macOS 10.13 High Sierra.
6) External drives are not automatically converted to Apple File System (APFS). Your Mac OS Extended external drives can be rebuilt as before.
7) DiskWarrior 5.2 is compatible with macOS 10.13 High Sierra, macOS 10.14 Mojave, macOS 10.15 Catalina and macOS 11.0 Big Sur when rebuilding Mac OS Extended external drives.
8) DiskWarrior 5.2 now runs within macOS 10.14 Mojave and macOS 10.15 Catalina Recovery.
9) The Preview application in DiskWarrior can now copy files to APFS disks when recovering data from a failing Mac OS Extended (HFS Plus) disk.
10) Numerous minor updates were made to accommodate additional security measures in macOS 10.14 Mojave and macOS 10.15 Catalina.
11) To rebuild Time Machine disks in macOS 10.14 Mojave, macOS 10.15 Catalina and macOS 11.0 Big Sur, DiskWarrior must be given “Full Disk Access” from within System Preferences. Otherwise, they can be be rebuilt from macOS Recovery or the DiskWarrior Recovery flash drive. Starting with macOS 11.0 Big Sur, Time Machine disks can be formatted as APFS and cannot be rebuilt. Mac OS Extended (HFS Plus) Time Machine disks can be rebuilt under Big Sur.
The following applies only when running an installed copy of DiskWarrior from within macOS 10.13 High Sierra, macOS 10.14 Mojave, 10.15 Catalina and 11 Big Sur; not when booted from the DiskWarrior flash drive or macOS Recovery.
12) Due to the ever enhancing security of macOS you might need to first 'Allow' the system extension portion of DiskWarrior to be loaded on your Mac. The first time you launch DiskWarrior 5.2, the system extension might be blocked. You will only need to allow the system extension once.
Follow the instructions in the System Extension Blocked message to allow the DiskWarrior system extension software to be loaded. Open the Security & Privacy System Preference and click the lock and then click the Allow button.
Quit DiskWarrior, reboot your Mac and launch DiskWarrior again.
Click here for a step-by-step video guide on installing DiskWarrior 5.2 in these newer versions of macOS.
What's in the works
The next major release of DiskWarrior (DiskWarrior 6.0) will include the ability to rebuild APFS disks and run from M1 (ARM) equipped Macs. Apple released a majority of the APFS format documentation in June of 2020 . Our developers are now using this documentation to update DiskWarrior in order to safely rebuild Apple File System (APFS) disks.
Using DiskWarrior Recovery Maker 1.4.
What you need to know
1) DiskWarrior Recovery Maker 1.4 is compatible with macOS 10.14 Mojave and macOS 10.15 Catalina. You will need DiskWarrior 5.2 to run DiskWarrior from a recovery flash drive created while running macOS 10.14 Mojave or macOS 10.15 Catalina. Creating a 10.14 or 10.15 recovery flash drive will not allow DiskWarrior to rebuild APFS (Apple File System) disks.
2) An extra step is needed to create a DiskWarrior startup recovery flash drive on an iMac Pro, late 2019 Mac Pro, a mid-2018/2019 MacBook Pro, late-2018 / mid-2019 MacBook Air or a late-2018 Mac mini. These 4 Macs are equipped with Secure Boot via Apple’s T2 Security Chip. By default, Secure Boot does not allow starting up from an external disk such as a DiskWarrior recovery flash drive. Also by default, Secure Boot prevents the creation of a macOS startup disk except for those created using Apple's Installer.
To create and use a DiskWarrior Recovery disk for Macs with Secure Boot, it will be necessary to change the default Secure Boot and External Boot settings using the Startup Security Utility. The Secure Boot setting will need to be changed to Medium Security or No Security. Alsoft recommends Medium Security. Additionally, the External Boot setting will need to be changed to Allow booting from external media.
Please follow the instructions found on Apple's web site using the following link to make the needed changes.
Notice: Creation of, or start up from, a DiskWarrior recovery flash drive will fail if the above steps are not taken.
Didn't read all of the above? At least read this summary:
1) DiskWarrior 5.2 is compatible with High Sierra, Mojave, Catalina and Big Sur when rebuilding external Mac OS Extended disks.
2) Your external drives (including Time Machine Volumes) can be rebuilt as before.
3) The Startup Disk of Macs are converted to APFS (Apple File System) when installing or upgrading to macOS 10.14 Mojave, macOS 10.15 Catalina, macOS 11.0 Big Sur or macOS 10.13 High Sierra (High Sierra only converts internal Solid State Drives (SSD/Flash).
4) APFS (Apple File System) disks ARE NOT able to be rebuilt. Click here to learn how to identify an APFS disk.
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5) In Mojave and Catalina, Time Machine disks cannot be rebuilt with DiskWarrior unless DiskWarrior is given “Full Disk Access” from within the Security pane of System Preferences. Otherwise Time Machine disks must now be rebuilt from macOS Recovery or the DiskWarrior Recovery Flash drive. Starting with macOS 11.0 Big Sur, Time Machine disks can be formatted as APFS and cannot be rebuilt. Mac OS Extended (HFS Plus) Time Machine disks can be rebuilt under Big Sur.
6) The next major release of DiskWarrior will include the ability to rebuild APFS disks.
7) Click here to join the Mailing List to be notified of progress regarding Apple File System (APFS) support and updates to DiskWarrior.
8) M1 (ARM) equipped Macs are not currently supported. See our Big Sur Compatibility Page.
Updating to DiskWarrior 5.2 and DiskWarrior Recovery Maker 1.4.
1) A free updater is available for owners of DiskWarrior 5.0 and 5.1.
2) The updater will replace the DW partition on the DiskWarrior flash drive. The updated flash drive will contain DiskWarrior 5.2 and DiskWarrior Recovery Maker 1.4.
3) The updater will also update any installed copy of DiskWarrior 5.0 or 5.1 that is located in the Applications folder.
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4) The updater will also update DiskWarrior 5.0 or 5.1 that is located on any attached DiskWarrior recovery flash drives that were created with earlier versions of DiskWarrior Recovery Maker.
5) Click here to download the combo DiskWarrior 5.2 and DiskWarrior Recovery Maker 1.4 updater.
6) Click hereto download the standalone DiskWarrior Recovery Maker 1.4 updater.
After a long wait, Alsoft has finally released its Universal version of DiskWarrior. This program is one of the stalwarts of disk repair for Macs, and has proven, over the years, to be one of the most reliable utilities for repairing disk directory problems. DiskWarrior both optimizes and repairs directories on hard disks, RAID volumes, FileVaults, disk images, and iPods.
In addition to the program’s basic functionality, DiskWarrior 4 adds features for ferreting out corrupted preference files, repairing OS X permissions (also accessible from Apple’s Disk Utility), repairing and rebuilding access control lists, and repairing more types of disk problems than previous versions.
DiskWarrior is designed to work from your computer, and you can repair more than one disk or volume, but you must use a special, bootable DiskWarrior CD if you want to repair or optimize your startup volume. Using it is simple; the program’s interface is clear, and its options are well-explained in the documentation. Startup from the CD can take a few minutes, but once you start running the program, operations are much faster than in previous versions.
While most people come to a program like DiskWarrior after they have experienced disk problems, the program is also designed for regular maintenance. Running DiskWarrior to optimize your directory can ward off nascent problems before they get serious, and it can also speed up your Mac’s startup time and access to files. In addition to rebuilding directories, the Files tab of the program lets you check files for corruption and rebuild permissions on startup volumes. Finally, the Hardware tab tests the S.M.A.R.T. (Self-Monitoring Analysis and Reporting Technology) status of your hard disks, and lets you turn on automatic diagnostics. Most recent IDE (Integrated Drive Electronics) hard drives offer a S.M.A.R.T. status check, which indicates when certain anomalies are discovered that could lead to disk failure; running this check automatically can alert you before bad things happen, so you have time to back up your data.
In our tests, DiskWarrior spotted many small and large problems on defective hard disks. We tested it on several Macs currently in regular use, and the program found and repaired instances on all of them. We also ran DiskWarrior on hard disks where we manually corrupted directory information using a sector editor, and DiskWarrior repaired those problems too. While the program can’t fix all disk anomalies (such as corrupted partition maps, which are relatively rare), it will repair most disk problems that you’ll come across.
Even if your hard disk doesn’t mount, DiskWarrior can almost always repair it. One new feature that DiskWarrior 4 offers is the ability to repair disk images that won’t mount in the Finder. From the program’s File menu, the Rebuild Disk Image menu item prompts you to select a disk image, which DiskWarrior then mounts and repairs, if possible.
Macworld’s buying advice
Few utilities are as important and as reliable as DiskWarrior 4. Throughout many years, this program has showed its value as a data and bacon saver, and this new version continues to provide essential maintenance and repair features. This may be one of the few programs that every Mac user should own.
[ Kirk McElhearn is the author of many books, including The Mac OS X Command Line: Unix Under the Hood (Sybex, 2004). His blog, Kirkville, talks about Macs, iPods, and more. ]
DiskWarrior displays the current status of a hard disk’s directory, showing how much optimization is necessary.