DWBoxDiskWarrior 4 Support

DiskWarrior 4 is required for Intel-based Macs. Learn about the new features of DiskWarrior 4 and how to upgrade by clicking here.

Please note that to install DiskWarrior 4 onto your hard disk, your Mac must start up in OS X 10.3.9 through 10.9. Please read the system requirements for DiskWarrior 4.

DiskWarrior 4 version 4.4 is now available on DiskWarrior DVD revision 1109. This DVD is a universal startup DVD that can start up both PowerPC and Intel Macs. All Mac models meeting the system requirements for DiskWarrior can be started from the DVD. The current DiskWarrior DVD cannot start up the new MacBook Pros introduced June 11, 2012. An updated disc that will also start up these recent Mac models will be released as soon as Apple, Inc. releases new startup files to Alsoft, Inc. and other developers. Some older iMacs with wireless keyboards have timing issues when starting up from any DVD. Instead of pressing the "C" key immediately upon start up, wait for the startup chime and then press the "Option" key. This will bring up the Startup Manager which will allow you to choose the DVD as a startup disk. If your wireless mouse is not working in the Startup Manager, use the arrow keys to choose the DVD, then press the "Return" key to continue starting up. Click here to learn how to repair the directory of a disk in a Mac model that cannot be started from the DiskWarrior DVD.

Need support for DiskWarrior 3? Click here.

Support News

10/22/2013 - DiskWarrior 4 version 4.4 Compatible with OS X 10.9 Mavericks
The previously released DiskWarrior 4 version 4.4 is required to run an installed copy of DiskWarrior while started from 10.9 Mavericks. If you haven't already done so, you can use the free updater for existing owners of DiskWarrior 4 versions 4.0-4.3.

11/05/2012 - DiskWarrior 4 version 4.4 Compatible with Fusion Drive
DiskWarrior 4 version 4.4 was released last year and is required to repair the directory of a Fusion Drive. You must be started from OS X 10.8.2 Mountain Lion, or later, to rebuild the directory of a Fusion Drive. If you haven't already done so, you can use the free updater for existing owners of DiskWarrior 4 versions 4.0-4.3.

07/25/2012 - DiskWarrior 4 version 4.4 Compatible with OS X 10.8 Mountain Lion
DiskWarrior 4 version 4.4 was released last September and is required to run an installed copy of DiskWarrior while started from 10.8 Mountain Lion. If you haven't already done so, you can use the free updater for existing owners of DiskWarrior 4 versions 4.0-4.3.

07/25/2012 - DiskWarrior 4 version 4.4 and Gatekeeper
Gatekeeper is a new feature of OS X 10.8 Mountain Lion that helps protect you from downloading and installing malicious software on your Mac. Developers can now digitally "sign" their applications so that they are identified as being produced by a known developer such as Alsoft. If a downloaded application is signed by an identified developer, the default behavior of Gatekeeper is to allow you to use the application. Downloaded applications that are not signed cannot be used with a simple double click.

As of today, all copies of DiskWarrior and the DiskWarrior 4 version 4.4 updater that are downloaded from the Alsoft site are digitally signed. This allows you to run these downloaded applications by simply double clicking as you normally would.

What about older downloaded copies of DiskWarrior? Gatekeeper only checks to see if a downloaded application is okay to run if it has not been run before. So you don't need to do anything with older copies of DiskWarrior that you have installed and run prior to installing OS X 10.8 Mountain Lion. If you install an older downloaded copy of DiskWarrior after installing OS X 10.8 Mountain Lion then you can indicate to Gatekeeper that it's okay to run DiskWarrior by control (or right) clicking on the DiskWarrior application and choosing open from the pop-up menu that appears. You'll only need to control (or right) click the first time you run the older downloaded copy of DiskWarrior.

What about DiskWarrior on a DVD or CD? Applications on DVD are not downloaded and therefore are not checked by Gatekeeper.

10/10/2011 - New DiskWarrior 4 version 4.4 Released
DiskWarrior 4 version 4.4 is now available. This release features ongoing internal enhancements for speed and improved repair. A free updater for existing owners of DiskWarrior 4 versions 4.0-4.3 is also available for immediate download (see below).

10/10/2011 - Free DiskWarrior 4 version 4.4 Disc Updater Available
Owners of DiskWarrior 4 versions 4.0-4.3 can now download a free disc update to update to DiskWarrior 4 version 4.4. This free updater application allows you to create a new startup disc (CD/DVD) with the latest version of DiskWarrior using your original DiskWarrior 4.0 to 4.3 disc. This approach provides you with an instant update while maintaining your ability to start up from a disc containing the latest version of DiskWarrior.

The DiskWarrior 4.4 Disc updater cannot update a disc created by any previous DiskWarrior updater. You must update your original (factory) DiskWarrior 4.0 to 4.3 disc. This limitation allows us to reduce the size and complexity of the updater. It also results in a significantly smaller test suite that permits us to issue updates more responsively.

Please note that the new startup disc you create will start up the same set of Mac models as your current DiskWarrior disc (CD/DVD). Your new disc will not start up any Mac that your current DiskWarrior disc can not. If you need a new DiskWarrior disc that can start up the newest Mac models, please contact our Sales Department to order. Please note that you will receive a DVD even if your previous DiskWarrior disc was a CD.

10/10/2011 - DiskWarrior DVD Revision 1109 Released
DiskWarrior DVD revision 1109 was released containing the new DiskWarrior 4 version 4.4. This DVD is identical to the older DVD revision 1107 that it replaces except that DVD revision 1109 contains the new version of DiskWarrior. All Mac models meeting the system requirements for DiskWarrior can be started from the DVD.

07/20/2011 - DiskWarrior 4 version 4.3 Compatible with Mac OS X 10.7 Lion
DiskWarrior 4 version 4.3 was released in March and is required to run an installed copy of DiskWarrior while started from 10.7 Lion. If you haven't already done so, you can use the free updater for existing owners of DiskWarrior 4 versions 4.0-4.2.

07/20/2011 - DiskWarrior DVD Revision 1107 Released
DiskWarrior DVD revision 1107 was released to start up the new MacBook Pros (introduced February 24, 2011) and the new iMacs (introduced May 3, 2011). Some newer iMacs with wireless keyboards have timing issues when starting up from any DVD. Instead of pressing the "C" key immediately upon start up, wait for the startup chime and then press the "Option" key. This will bring up the Startup Manager which will allow you to choose the DVD as a startup disk. If your wireless mouse is not working in the Startup Manager, use the arrow keys to choose the DVD, then press the "Return" key to continue starting up.

03/02/2011 - DiskWarrior DVD Revision 1102 Released
DiskWarrior DVD revision 1102 was released to start up the iMac Core i3, i5 and i7 models, the MacBook Pro models (introduced April 13, 2010), the new MacBook Air (introduced October 20, 2010), the new Mac Mini models (introduced June 15, 2010) and the new Mac Pros (introduced July 27, 2010). The MacBook Pro models introduced February 24, 2011 cannot be started from DiskWarrior DVD revision 1102. A new DVD will be released to start up the new MacBook Pros once Apple, Inc. releases new system startup files to Alsoft, Inc. and other developers.

03/02/2011 - New DiskWarrior 4 version 4.3 Released
DiskWarrior 4 version 4.3 is now available. This release features ongoing internal enhancements for speed and improved repair. A free updater for existing owners of DiskWarrior 4 versions 4.0-4.2 is also available for immediate download (see below).

03/02/2011 - Free DiskWarrior 4 version 4.3 Disc Updater Available
Owners of DiskWarrior 4 versions 4.0-4.2 can now download a free disc updater to update to DiskWarrior 4 version 4.3. This free updater application allows you to create a new startup disc (CD/DVD) with the latest version of DiskWarrior using your original DiskWarrior 4.0 to 4.2 disc. This approach provides you with an instant update while maintaining your ability to start up from a disc containing the latest version of DiskWarrior.

The DiskWarrior 4.3 Disc updater cannot update a disc created by any previous DiskWarrior updater. You must update your original (factory) DiskWarrior 4.0 to 4.2 disc. This limitation allows us to reduce the size and complexity of the updater. It also results in a significantly smaller test suite that permits us to issue updates more responsively.

Please note that the new startup disc you create will start up the same set of Mac models as your current DiskWarrior disc (CD/DVD). Your new disc will not start up any Mac that your current DiskWarrior disc can not. If you need a new DiskWarrior disc that can start up the newest Mac models, please contact our Sales Department to order. Please note that you will receive a DVD even if your previous DiskWarrior disc was a CD.

01/04/2010 - DiskWarrior DVD Revision 1001 Released
DiskWarrior DVD revision 1001 was released to start up the new Mac mini, MacBook and iMac models released in late October. The iMac Quad-Core model is still not supported. The DiskWarrior application is unchanged and remains at version 4.2.

08/27/2009 - New DiskWarrior 4 version 4.2 Released for Mac OS X 10.6 (Snow Leopard) Compatibility
DiskWarrior 4 version 4.2 is now available for compatibility with Mac OS X 10.6 (Snow Leopard). Among the new features in version 4.2 are enhanced and faster directory repairs. Click here for limitations on using the older DiskWarrior version 4.0 or 4.1 with Snow Leopard.

The new version is available for sale on the Alsoft ecommerce web site. Purchases of new copies from the ecommerce web site result in an immediate download with companion DVD shipments starting in 4 days on Tuesday, September 1 (see next item below). A free updater for existing owners of DiskWarrior 4 versions 4.0-4.1.1 is also available for immediate download (see second item below).

08/27/2009 - DiskWarrior DVD Revision 909 Announced
DiskWarrior DVD revision 909 will begin shipping on Tuesday, September 1. The new DVD contains DiskWarrior 4 version 4.2 and adds support for starting up the new 13" and 15" MacBook Pro (SD card slot) models introduced in June 2009.

08/27/2009 - Free DiskWarrior 4 version 4.2 Disc Updater Available
Owners of DiskWarrior 4 versions 4.0-4.1.1 can now download a free disc updater to update to DiskWarrior 4 version 4.2. This free updater application allows you to create a new startup disc (CD/DVD) with the latest version of DiskWarrior using your original DiskWarrior 4.0 or 4.1 disc. This approach provides you with an instant update while maintaining your ability to start up from a disc containing the latest version of DiskWarrior.

The DiskWarrior 4.2 Disc updater cannot update a disc created by any previous DiskWarrior updater. You must update your original (factory) DiskWarrior 4.0 or 4.1 disc. This limitation allows us to reduce the size and complexity of the updater. It also results in a significantly smaller test suite that permits us to issue updates more responsively.

Please note that the new startup disc you create will start up the same set of Mac models as your current DiskWarrior disc (CD/DVD). Your new disc will not start up any Mac that your current DiskWarrior disc can not. If you need a new DiskWarrior disc that can start up the newest Mac models, please contact our Sales Department to order. Please note that you will receive a DVD even if your previous DiskWarrior disc was a CD.

08/07/2009
DiskWarrior 4 version 4.1.1 (released 10/27/2008) is compatible with Mac OS X 10.5.8 (Leopard).

05/13/2009
DiskWarrior 4 version 4.1.1 (released 10/27/2008) is compatible with Mac OS X 10.5.7 (Leopard).

04/13/2009 - DiskWarrior DVD Revision 904 Released
DiskWarrior DVD revision 904 was released to start up the new Mac Pro models announced on 03/03/2009. The DiskWarrior application is unchanged and remains at version 4.1.1.

03/13/2009
The current DiskWarrior DVD revision 901 can start up the new iMac and Mac mini models introduced on 03/03/2009. DiskWarrior DVD revision 901 cannot start up the Mac Pro models announced on the same day.

01/31/2009
The current DiskWarrior DVD revision 901 can start up the new white MacBook (NVIDIA GeForce 9400M graphics) and MacBook Pro 17" models introduced in January 2009.

01/05/2009 - DiskWarrior DVD Revision 901 Released
DiskWarrior DVD revision 901 was released to start up the new MacBook/MacBook Pro/MacBook Air models introduced on 10/14/2008. The DiskWarrior application is unchanged and remains at version 4.1.1.

10/27/2008 - New DiskWarrior 4 version 4.1.1 Released for Mac OS X 10.5.5 (Leopard) compatibility
DiskWarrior 4 version 4.1.1 is now available for complete compatibility with Mac OS X 10.5.5 (Leopard). Version 4.1.1 restores the ability to use DiskWarrior to repair permissions while started from Mac OS X 10.5.5.

10/27/2008 - Free DiskWarrior 4 version 4.1.1 CD Updater Available
Owners of DiskWarrior 4 version 4.0 and version 4.1 can now download a free CD updater to update to DiskWarrior 4 version 4.1.1. This free updater application allows you to create a new startup CD with the latest version of DiskWarrior using your original DiskWarrior 4.0 or 4.1 CD. This approach provides you with an instant update while maintaining your ability to start up from a CD containing the latest version of DiskWarrior.

The DiskWarrior 4.1.1 CD updater cannot update a CD created by any previous DiskWarrior CD updater. You must update your original (factory) DiskWarrior 4.0 or 4.1 CD. This limitation allows us to reduce the size and complexity of the updater. It also results in a significantly smaller test suite that permits us to issue updates more responsively.

Please note that the new startup CD you create will start up the same set of Mac models as your current DiskWarrior CD. Your new CD will not start up any Mac that your current DiskWarrior CD can not. If you need a new DiskWarrior disc that can start up the newest Mac models, please contact our Sales Department to order. Please note that you will receive a DVD instead of a CD (as stated below).

10/27/2008 - DiskWarrior DVD Revision 810 Released
DiskWarrior 4 now ships on DVD instead of CD. With this switch, a new revision scheme has been adopted and the revision of the new DVD is 810. All Mac models meeting the updated system requirements for DiskWarrior can be started from the new DVD. The requirements to start up from the DVD are the same as the requirements to install Mac OS X 10.5 (Leopard). DiskWarrior 4 version 4.1.1 is available, by request, on CD for old Macs that do not have DVD drives. However, these CDs cannot start up any currently shipping Macs models and can only be obtained by first contacting our Technical Support Department.

03/17/2008 - Free DiskWarrior 4 version 4.1 CD updater available
Owners of DiskWarrior 4 version 4.0 can now download a free CD updater to create a new startup CD containing DiskWarrior 4 version 4.1. Please note that the new startup CD will start up the same set of Macs as your current DiskWarrior CD. Your new CD will not start up any Mac that your current DiskWarrior CD can not.

See below for details on what's new in DiskWarrior 4 version 4.1 and limitations of Leopard features while started from Mac OS X 10.4 (Tiger) or earlier.

01/21/2008 - New DiskWarrior 4 version 4.1 released for Mac OS X 10.5 (Leopard) compatibility
DiskWarrior 4 version 4.1 is now available for complete compatibility with Mac OS X 10.5 (Leopard). Version 4.1 offers additional repair capabilities including the ability to repair damaged directory hard links (a new feature of Leopard for Time Machine backups). DiskWarrior 4 version 4.1 is the only utility that can repair damaged links, directory loops and other problems that can happen with directory hard links.

Running DiskWarrior 4 version 4.1 on a Mac OS X 10.5 (Leopard) startup disk while started from Mac OS X 10.4 (Tiger) or earlier.

If you want or need to run DiskWarrior 4 version 4.1 from Mac OS X 10.4 or earlier, there are two features of DiskWarrior that are not available for a Mac OS X 10.5 startup disk. First, you cannot repair the permissions of a Mac OS X 10.5 startup disk. Second, you cannot rebuild a FileVault that was created under Mac OS X 10.5. You will be able to rebuild a FileVault that was created on a startup disk that was later upgraded to Mac OS X 10.5. Your DiskWarrior CD may start up in Mac OS X 10.4 and would therefore have these features disabled for a Mac OS X 10.5 startup disk. Click here for additional procedures to rebuild the startup disk.

11/01/2007
DiskWarrior CD revision 41 can start up the new MacBook and MacBook Pro models introduced on 11/01/2007.

10/29/2007 (updates and replaces the entry originally dated 10/26/2007)
DiskWarrior 4 version 4.0 will successfully rebuild a disk that has Mac OS X 10.5 Leopard installed or a disk that has been attached to a computer running Leopard.

However, some operating system functionality has changed within Leopard itself. As such, there are some compatibility issues when running an installed copy of DiskWarrior 4 version 4.0 while started up from Mac OS X 10.5 Leopard. Alsoft currently recommends that you do not run DiskWarrior 4 version 4.0 while the computer is started from Mac OS X 10.5 Leopard.

Instead, to run DiskWarrior, you should start up the computer from either:

1) A DiskWarrior 4 version 4.0 CD.

2) Any disk that starts up in 10.4.x and then run DiskWarrior 4 version 4.0.

An updated version of DiskWarrior that has complete Leopard compatibility will be released soon as a free download for existing owners of DiskWarrior 4 version 4.0.

What you can expect when running DiskWarrior 4 version 4.0 under Mac OS X 10.4.x and rebuilding a Leopard disk.

All features work as expected with two exceptions:

1) You should not use any utility to repair permissions of a Leopard start up disk while started from Mac OS X 10.4.x or earlier. Permissions will either not be be repaired or will be repaired improperly. This is true whether you repair permissions with Apple's Disk Utility, DiskWarrior, or any other third-party utility. Regardless of which utility you use, the same service within Mac OS X is used to perform the actual permissions repair so the behavior is always the same.

To repair permissions of a Leopard startup disk, be sure you've always started your Mac from Leopard. Alsoft also recommends using only the Disk Utility included with Leopard to repair permissions until an updated version of DiskWarrior is released.

Note: If you have used any utility to repair permissions of a Leopard startup disk while started from Mac OS X 10.4 or earlier, Alsoft recommends that you perform an upgrade install of Leopard over your existing Leopard install. This will restore any changed permissions to their original values without altering your data.

2) FileVaults created while started from Leopard are not visible to DiskWarrior 4 version 4.0 and cannot be rebuilt (repaired).

What you can expect when running DiskWarrior 4 version 4.0 under Mac OS X 10.5 and rebuilding a Leopard disk.

While not recommended (and discouraged), if you do run DiskWarrior 4 version 4.0 while started from Mac OS X 10.5 you might encounter some problems such as:

1) You cannot rebuild FileVaults or disk images.

2) In step 9 (comparing directories) of a rebuild, the progress bar might get to 100% even though the comparison step is not finished and will continue to execute.

3) When performing Check All Files and Folders the progress bar might get to 100% even though the check is not finished and will continue to execute.

4) After rebuilding a disk, DiskWarrior may report that some files or folders have had their permissions changed. This is inaccurate and the permissions have not been changed.

To repeat, an updated version of DiskWarrior that has complete Leopard compatibility will be released soon as a free download for existing owners of DiskWarrior 4 version 4.0.

What about DiskWarrior 3?

For DiskWarrior 3 compatibility, see DiskWarrior 3 Support.

08/07/2007
The current DiskWarrior CD revision 41 can start up the new iMac and Mac mini models introduced on 08/07/2007.

07/16/2007
DiskWarrior CD revision 41 was released to start up the new MacBook Pro models introduced on 06/05/2007. The DiskWarrior application is unchanged and remains at version 4.0.

12/11/2006
When DiskWarrior first opens, it displays a window with a shield as it is loading. At one point it says in the lower-left portion of the window that DiskWarrior is "starting services." If you're running an installed version of DiskWarrior and it freezes when "starting services" is displayed, click here to learn how to continue.

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SUPPORT INFORMATION:

Free DiskWarrior 4 Version 4.4 Disc Update available for owners of DiskWarrior 4. Both English and Japanese updaters are available.

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DiskWarrior 3 Support and Updates

DiskWarrior 2.1 Support and Updates

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TO CONTACT TECH SUPPORT

First check the Alsoft Support Database for answers to your technical support questions

Submit Your Tech Support Question via the Web (these messages get higher priority than messages sent via regular e-mail).

E-mail:
Tech.Support at Alsoft.com

Voice:
281-358-1510

Fax:
281-348-9868

9:00 AM - 5:00 PM Central Time, Monday through Friday

Mail:
Alsoft, Inc.
Technical Support
P.O. Box 5150
Kingwood TX 77325-5150

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